Coin Grading
The PCGS-Graded 1,000 Bitcoin ‘Gold Cas’
A one-ounce gold Casascius token once controlled 1,000 BTC and received a PCGS PR70DCAM grade. Learn how the object worked and what its reported $48 million value meant.
At a glance
What was the PCGS-graded physical 1,000 Bitcoin token, and did it sell for $48 million?
The Gold Cas is a 2012-dated Casascius token made from one troy ounce of .999 gold, with a concealed private key linked to 1,000 BTC. PCGS graded the object PR70DCAM in 2021. The reported $48 million was the Bitcoin balance's value on 4 October 2021, not a sale price.
- Mike Caldwell created the 2012-dated Casascius token from one troy ounce of .999 gold with a 1,000 BTC denomination.
- Peeling the hologram exposed the private key and changed both cryptocurrency security and the token's collectable condition.
- The $48 million report used the value of 1,000 BTC on 4 October 2021; it did not record a sale or independent numismatic valuation.

Written by
Richard Lyttle leads Bullion House across product standards, customer experience, and educational review. He reviews high-trust buying guidance so customers can understand physical gold, tax-sensitive product features, and resale considerations before they buy.
Reviewed by Liam Yarwood on 25 Jul 2026

On this page
GreatCollections submitted a gold Casascius token to Professional Coin Grading Service in 2021 on behalf of an anonymous owner. The token carried a 1,000 BTC denomination.
PCGS gave the physical object a PR70DCAM grade. Reports then described it as a $48 million numismatic item, a figure tied to Bitcoin's market price on 4 October 2021.
The gold, the collectable token and the concealed private key create three sources of value and three sets of risk.
Identifying the 1,000 Bitcoin Gold Cas
- Attribute
- Creator
- Reported detail
- Mike Caldwell
- Attribute
- Brand
- Reported detail
- Casascius
- Attribute
- Date shown
- Reported detail
- 2012 CASASCIUS
- Attribute
- Metal
- Reported detail
- One troy ounce of .999 fine gold
- Attribute
- Cryptocurrency denomination
- Reported detail
- 1,000 BTC
- Attribute
- PCGS grade
- Reported detail
- PR70DCAM
- Attribute
- Submission
- Reported detail
- GreatCollections for an anonymous owner
- Attribute
- Report date
- Reported detail
- 4 October 2021
- Attribute
- Sale status
- Reported detail
- Not for sale in the 2021 report
- Attribute
- Reported BTC value
- Reported detail
- About $48 million on 4 October 2021
| Attribute | Reported detail |
|---|---|
| Creator | Mike Caldwell |
| Brand | Casascius |
| Date shown | 2012 CASASCIUS |
| Metal | One troy ounce of .999 fine gold |
| Cryptocurrency denomination | 1,000 BTC |
| PCGS grade | PR70DCAM |
| Submission | GreatCollections for an anonymous owner |
| Report date | 4 October 2021 |
| Sale status | Not for sale in the 2021 report |
| Reported BTC value | About $48 million on 4 October 2021 |
The obverse carries the wording 1 TROY OZ .999 FINE GOLD and the date 2012 CASASCIUS. A multicolour tamper-evident hologram covers the redemption mechanism on the reverse.
PCGS reported six gold 1,000 BTC Casascius coins made, with four still unredeemed on 4 October 2021. Those figures describe the position at that date.
PCGS also reported a December 2011 purchase. We found no primary production record that resolves the difference between that purchase date and the 2012 date on the token.
Mike Caldwell and Casascius physical Bitcoins
Mike Caldwell created Casascius tokens in several Bitcoin denominations. His project gave collectors a metal object linked to value recorded on the Bitcoin blockchain.
Caldwell's website says each funded piece carried a public Bitcoin address and a redeemable private key beneath a hologram.
He suspended sales of funded items on 27 November 2013. Surviving pieces now include loaded tokens and redeemed shells.
Collectors value the series as part of Bitcoin's early material history. That historical interest does not remove the technical and market risks.
The coin does not hold Bitcoin inside the gold
The Bitcoin network records balances on a distributed ledger. A private key lets its holder authorise a transfer from the associated address.
The Casascius token carried that secret under its hologram. The metal acted as a physical carrier for access to a digital asset recorded elsewhere.
A standard bullion coin derives value from its gold and any collector premium. A funded Casascius token can combine metal value, numismatic value and a cryptocurrency balance.
A buyer must measure each layer on its own terms. One troy ounce of gold explains a small part of the 2021 headline figure.
The private key, hologram and redemption
Caldwell designed the hologram to show a honeycomb tamper pattern after removal. Peeling it reveals the private key needed to control the Bitcoin.
A seller describes a token as loaded when the hidden key retains control of the stated Bitcoin balance. A redeemed token survives as a collectable shell after someone moves or claims the Bitcoin.
Hologram condition and blockchain balance answer separate questions. A visible balance does not prove that no one has copied the private key.
A peeled hologram shows that someone reached the secret. The address may still show a balance for a time, but anyone with the copied key could try to move it.
Caldwell states that he did not keep copies of the private keys. Collectors should treat that as the creator's account rather than proof about the security of each token.
What the PCGS grade covers
PCGS assigned PR70DCAM to the physical token. The label records the service's view of authenticity, proof condition and deep cameo contrast.
The grade gave an early cryptocurrency-linked token a place within an established numismatic certification system. It also placed the object in a holder with an identifying record.
The grade does not prove the current blockchain balance, secrecy of the private key, legal title or future market value.
A PCGS holder can protect the token from handling while leaving the key beneath the hologram. It cannot stop someone who already copied that key from using it.
Our PCGS and NGC comparison explains grading labels and certification checks for ordinary coins. A funded crypto token adds digital custody questions beyond the grade.
The anonymous-owner provenance reported in 2021
PCGS said GreatCollections arranged the submission for an anonymous owner and used an armed guard to move the token to PCGS headquarters.
The owner had no plan to sell at the time. PCGS reported that the token later sat in an overseas bank vault.
Those statements end with the October 2021 report. They do not establish the present owner, location, redemption status or custody arrangements.
A later buyer would need documents connecting the seller to the certified token and showing authority to transfer both the object and the associated digital rights.
The $48 million figure was a dated BTC calculation
PCGS and GreatCollections used the value of 1,000 BTC on the morning of 4 October 2021 to reach about $48 million.
The figure did not come from a completed auction or private sale. The reports do not identify it as an insurance valuation or an independent numismatic appraisal.
PCGS said the owner bought the token for $4,905 in December 2011. That historical result belongs to one purchase and one market period.
A present calculation would require a current address balance, a current exchange price and evidence that the private key remains secure.
Even with those inputs, a BTC calculation would not establish the price for the complete token. A buyer may discount for key risk, title, custody and the difficulty of settlement.
Authenticity, tampering and title
The token, hologram, visible address, PCGS certification and provenance should agree. Check the certification number through PCGS and compare the holder with the recorded item.
Any difference in the label, serial record, design or hologram calls for specialist review. A copy can imitate the appearance without carrying a valid private key.
The seller should prove legal title and explain what rights transfer with the metal token. Possession of the holder may not answer every ownership question.
Written terms should define the balance-check method, settlement sequence, key exposure and allocation of loss if the Bitcoin moves before completion.
A buyer can start with the checks in our guide to certified and graded coins, then add technical and legal advice suited to a funded token.
Two custody problems in one object
The gold token needs a secure vault, careful handling and suitable insurance. The private key needs protection from copying, disclosure, loss and unauthorised use.
A bank vault addresses physical theft but cannot prove that the key remains secret. A clean hologram supports confidence without settling the point.
Peeling the hologram lets the holder inspect the key, yet that act changes the token's condition and unredeemed status. The inspection can destroy part of the collector appeal.
A transaction therefore needs a specialist custody and settlement design. Ordinary coin-auction procedures may not cover the digital value at risk.
A crypto collectable rather than investment bullion
The Gold Cas contains one troy ounce of .999 gold. Its 2021 headline value came from the 1,000 BTC balance rather than the metal.
Direct cryptoasset holdings do not receive FSCS protection against market loss. The FCA warns buyers that they should be prepared to lose all the money they invest in cryptoassets.
UK rules for cryptoasset firms continue to develop. Check the status of the exact provider and activity before a transaction.
A Casascius token carries the volatility and key risk of cryptocurrency alongside the authenticity, condition and liquidity risks of a collectable coin.
Checks for a funded physical crypto token
Treat the gold, the graded object and the private key as separate workstreams.
- Verify the PCGS certification against the holder and token
- Confirm the public address and inspect its blockchain history
- Record the hologram condition without disturbing it
- Trace possession and legal title from the reported owner
- Agree how the parties will prove and transfer control
- Arrange physical security, digital security and insurance
Explore certified gold coins
Compare physical gold coins whose value does not depend on a concealed cryptocurrency private key.
Frequently asked questions
Is the Gold Cas made from solid gold?
PCGS described it as one troy ounce of .999 fine gold. The 2021 headline figure came from the 1,000 BTC balance rather than the gold.
Did someone buy the token for $48 million?
No. PCGS said the owner was not selling it in October 2021. The figure represented the value of 1,000 BTC on 4 October 2021.
What happens when someone peels the hologram?
Peeling reveals the private key and leaves a tamper pattern. It changes the security of the Bitcoin and the collectable condition of the token.
Does the PCGS grade prove the Bitcoin is secure?
No. The grade covers the physical object. It does not prove the balance, key secrecy, legal title or future value.
Does the token still control 1,000 BTC?
PCGS reported it as unredeemed on 4 October 2021. We found no newer primary record confirming its present balance, owner, location or redemption status.
Next practical step
Sources and further reading
Rules and market terms can change. Check the dated sources below and take advice on tax, regulation or personal finances where your position calls for it. For the practical side of buying or selling physical gold, speak to the Bullion House team.
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