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The Global Insight

What is a blob mint mark?

Author

Mia Phillips

Updated on April 11, 2026

The three S Mint mark styles of Proof Anthony dollars, from left to right, are the 1979-S Type 1, the 1979-S Type 2/1981-S Type 1, and the 1981-S Type 2. One frontrunner was the S Mint mark used on Proof coinage introduced in 1974. Its fitting nickname is the “blob S,” but it is also known as the “filled S.”

What is a 1981 United States proof set worth?

Because relatively few 1981 Type 2 proof sets were made, they are worth significantly more than 1981 Type 1 proof sets. In fact, while the 1981 Type 1 set usually sells for no more than $10 to $12, 1981 Type 2 sets can easily command prices well over $250.

Is the Susan B Anthony dollar worth anything?

Most Susan B Anthony Dollars (SBA’s) are worth a $1 since they’re circulated or low MS (Mint State) grades, or grades lower than MS64. The 1981-S is a key date and worth around $40 in MS64 and the 1981-P and 1981-D are lower mintage dates and mints so they’re worth a bit more than the other dates as well.

Is a Susan B Anthony dollar worth anything?

Anthony dollars circulated, many remain available in uncirculated condition and are worth little above face value. However, some date and mint mark varieties are relatively valuable. The 1981 coins, having been issued only to collectors, are valued above the other circulation strikes in the series.

What do the mintmarks on a coin mean?

To indicate where coins were minted they were often stamped with verifying marks such as letters or dots known as mintmarks. These letters or dots were always incorporated onto the dies and were struck with the coins. Some decimal coins have their mintmarks applied after striking.

Where do you find the mintmark on a one dollar coin?

The letter is on the die when the coin is struck and denotes the location that the coin is struck. The mintmark is a raised letter with no surround ie. C mintmark struck at the Gallery Presses or production presses at the RAM in Canberra, ACT. 3. The Counterstamp. The counterstamp is a raised letter within an incuse circular surround.

Where are the mintmarks on an Australian coin?

Australian Pre-decimal coins were minted in various locations here in Australia and overseas. To indicate where coins were minted they were often stamped with verifying marks such as letters or dots known as mintmarks. These letters or dots were always incorporated onto the dies and were struck with the coins.

Where are the D Marks on US coins?

1906-present dated coins with the “D” mark would indicate Denver, CO. Locating Mint Marks Most identifying marks were on the reverse sides of United States coins until 1968, when the location was moved to the obverse (front) side of the coins.