Rare 1906 Indian Head Cent w/ Repunched Date - "1" Over "1" Error (Snow 40)

​"Up for sale is a genuinely rare and fascinating piece of numismatic history: a 1906 Indian Head Cent featuring a well-known and sought-after error variety. This specific coin is recognized as the Repunched Date (RPD) -031 error, also famously known to collectors as the Snow 40 variety.
​The error is clearly visible to the naked eye under good lighting, showcasing a distinct doubling or "repunched" effect on the final '1' of the date, with a subtle impression of the numeral underneath. This is a classic example of a die variety created during the striking process at the U.S. Mint, where the hub was double-struck at a slightly different angle, leaving a lasting impression on the coin.