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Fading QuicklySnapshot Window: 2026-09-03 00:50 UTC ยท โ Back to Crypto Overview
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Verbatim Community Citations & Social Evidence 1 source posts analyzed
Relic-Level Item: Physical Bitcoin "Casascius Coin" 1. From 2011 to 2013, Mike Caldwell created "coins and gold bars" containing Bitcoin. 2. A hologram sticker is attached to the Bitcoin mark to conceal the "private key." 3. Due to the nature of the hologram sticker, once it's
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AI visual note: The image displays a 2011 PCGS MS67 graded 25 BTC Casascius Coin on the left, alongside a gold-colored 100 BTC Casascius Bitcoin bar on the right, illustrating the physical Bitcoin collectibles created by Mike Caldwell between 2011 and 2013. The visible label includes the serial numbers "888204.67/43136183" and notes the coins feature hologram stickers designed to conceal private keys, making them rare "relic-level" items in the cryptocurrency world.