AboutMyCoin1937 Proof Mercury Dime (No Mint Mark) in PR64
A 1937 proof Mercury dime with no mint mark graded PR64 is that coin in one particular state of preservation — the date and the mint mark are already fixed, and PR64 is what a grader called the surface that survived. What that looks like on this coin is below. Where the grade sits against the rungs either side of it, and every way it is written on a slab, are in the table below.
What PR64 means
A 1937 proof Mercury dime with no mint mark in Proof (PR-64) is a near-gem proof: the fields are deeply reflective, the open fields of Liberty’s cheek and the neck below the cap are essentially clean, and what keeps it off the gem grade is a few faint hairlines rather than anything a reader would notice unaided.
A slab, a dealer’s list or a price guide may write this grade PR-64, PF64 or PF-64. They are the same grade and the same 1937 proof Mercury dime with no mint mark.
Where this grade sits
The grades a 1937 proof Mercury dime with no mint mark is given run from PR60 to PR70. One step up from PR64 is Proof (PR-65). In general terms, the higher the grade the more the coin is worth.
| Grade |
|---|
| Proof (PR-60) |
| Proof (PR-61) |
| Proof (PR-62) |
| Proof (PR-63) |
| Proof (PR-64) ← this page |
| Proof (PR-65) |
| Proof (PR-66) |
| Proof (PR-67) |
| Proof (PR-68) |
| Proof (PR-69) |
| Proof (PR-70) |
How to check this yourself
Sold listings, not asking prices. The link below is already filtered to completed sales of a 1937 proof Mercury dime with no mint mark in PR64, 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 1937 Proof Mercury Dime (No Mint Mark) in PR64 →
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 1937 proof Mercury dime with no mint mark cannot be worth less than the metal in it. That figure is what the premium for PR64 is measured against, and it moves with the metal price rather than with the coin market.
Not an appraisal. AboutMyCoin estimates from published specifications and does not authenticate or grade coins.
1937 Proof Mercury Dime (No Mint Mark): every grade, the metal and the specification →