AboutMyCoin1921 Mercury Dime (No Mint Mark) in MS64
A 1921 Mercury dime with no mint mark graded MS64 is that coin in one particular state of preservation — the date and the mint mark are already fixed, and MS64 is what a grader called the surface that survived. What that looks like on this coin is below. The nearest grade of this date this site does have a researched figure for is Mint State (MS-65), at $4,075 to $4,539, from sales and public data.
What MS64 means
A 1921 Mercury dime with no mint mark in Mint State (MS-64) has no wear, full lustre and only minor marks, none of them where the eye lands first. This is the grade at which a coin stops being judged by its faults and starts being judged by how it looks.
A slab, a dealer’s list or a price guide may write this grade MS-64. They are the same grade and the same 1921 Mercury dime with no mint mark.
Where this grade sits
The grades a 1921 Mercury dime with no mint mark is given run from PO1 to MS70. One step up from MS64 is Mint State (MS-65), at $4,075 to $4,539 — which is what a reader whose coin might grade a point higher is really asking. In general terms, the higher the grade the more the coin is worth.
A blank in the value column is a grade this site has not researched, not a grade the coin is worth nothing in.
How to check this yourself
Sold listings, not asking prices. The link below is already filtered to completed sales of a 1921 Mercury dime with no mint mark in MS64, which is the difference between what somebody paid and what somebody hoped for. Until this site has a researched figure for this grade, that search is the answer — take the middle of several recent sales rather than the highest.
Completed sales of a 1921 Mercury Dime (No Mint Mark) in MS64 →
The metal floor under it
$4.65
0.0723 troy oz silver × $64.38 per troy ounce
$64.38/ozt, based on spot prices at 23 September 2026 19:59 UTC
Whatever the market does, a 1921 Mercury dime with no mint mark cannot be worth less than the metal in it. That figure is what the premium for MS64 is measured against, and it moves with the metal price rather than with the coin market.
Where these figures come from
We gather publicly available data from several public sources including eBay, PCGS, NGC, Numista, USA Coin Book, PriceCharting, and others.
Not an appraisal. AboutMyCoin estimates from published specifications and does not authenticate or grade coins.
1921 Mercury Dime (No Mint Mark): every grade, the metal and the specification →