1975 No Mint Mark Dime

My boyfriend received some coins from his grandfather and I was going through them and came across these 1975 coin's with S mint mark and D mint mark and the light blue one has no mint mark any info would be great. Thank you

 

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I also have a 1972 Nickel with no Mint mark in the same light blue paper.

 

No Mint Mark means it was minted in Philadelphia, thats the way it was supposed to be.

 

1975 Proof Dime Without S Mintmark to be Auctioned at Stack's Bowers Galleries One of Two Known - A Landmark Rarity
- July 26, 2011
Irvine, California – With great pleasure Stack's Bowers Galleries will be offering at the World's Fair of Money one of the very few United States rarities listed in the Guide Book of United States Coins that has never before sold at public auction! The focus will be on one of just two examples known to us of the 1975-S Proof Roosevelt dime lacking the S mintmark. The presently offered coin was purchased in February 1979 by dealer Fred Vollmer, a professional who specialized in Proof coins and sets and appreciated the unique opportunity. In 1980 Vollmer sold it to the present consignor as part of a proof set. The set with the dime rarity has been off the market for 31 years! The entire proof set has been recently certified by PCGS, the coins individually graded and encapsulated. The 1975 No S dime has been certified Proof-68 by PCGS. This is the only 1975 No S dime that has been certified by PCGS, making it the ultimate rarity for the PCGS Set Registry collector.

Despite a lot of publicity and attention since then, only one other has been reported. This is simply amazing in terms of American coinage, in which there is a great deal of focus on issues, particularly those of recent generations!
In 1975 the San Francisco Mint produced 2,845,450 sets of brilliant mirror Proofs, each coin-the Lincoln cent, Jefferson nickel, Roosevelt dime, Washington quarter, and Kennedy half dollar bearing a distinctive S mintmark. Except for two dimes.
Dies for the 1975-S Proof coinage were produced at the Philadelphia Mint, including the placement of the S mintmark, and were shipped to San Francisco. At that western facility Proof coins were carefully struck, after which they were sent to another location, encased in clear holders, and shipped to buyers.
By error, one obverse die for the dime did not have the S mintmark added! Although the Mint has never disclosed details of the several other similar errors among other San Francisco Proofs, it can be surmised that the error die was identified, and any coins still on hand near the press were destroyed. At least two escaped!
Study of the "S-Less" Proofs I was reading this article on these.... Does this have anything to do with this Dime?

 

2. 1975 No S Proof Roosevelt Dime
1975 No S Proof Roosevelt Dime

Conceptual Front (Click to Enlarge)

Conceptual Rear (Click to Enlarge)
To learn more about the 1975 No S Proof Roosevelt Dime and all of the coins in the TOP 100 Modern U.S. Coins article, visit PCGS CoinFacts.
Preview CoinFacts
Ron Guth: Only two examples of the 1975-S No S Dime are known. The first coin was discovered in a 1975-S Proof Set in 1977. The second example was found seven years later. The discovery coin was sold in 1979 to Proof coin specialist, Fred Vollmer, who sold it the next year to a collector. Neither coin had ever appeared at auction until the discovery coin was included in the 2011 ANA sale offering by Stack's-Bowers, where it sold for $349,600.
"No-S" Proof coins were the product of the way Proof dies were handled. Beginning in
Only two are known. One sold for $349,000 at the 2011 ANA sale.
1968, when the San Francisco Mint began striking Proof coins, all dies for Proof coins were prepared at the Philadelphia Mint. This was done by adding a mintmark to a normal P-Mint die. However, some dies escaped this process; thus we see "No-S" dimes in 1968, 1970, 1975 and 1983, "No-S" Nickels in 1971, and "No-S" Lincoln Cents in
1990. Any estimates of the number of "No-S" coins is strictly a guess, but all except for the 1975 No-S Dime have certified populations of between 24 and 242.
The extreme rarity of the 1975 "No-S" Proof Dime can be explained in two ways (both plausible conjectures):
1. The error was discovered at the Mint in time to stop the press, but not before a very small quantity of sets had already gone out the door.
2. The coins were deliberately made. This explanation is not as far-fetched as it may seem, because other remarkable Proof errors emerged from the San Francisco Mint during the early 1970s (for example, a Proof 1970-S Washington Quarter struck over a 1900 Barber Quarter –
NOT GETTING MY HOPES UP LOL

 

You have mint sets, not proofs, so, no, you don't have the elusive "1975 no S dime".

 

talk about a tease

nice 75 mint set though some decent tone.

 

ONE CAN HOPE LOL

 

Thank you for the info.....

 

Keep looking because when you least expect it you'll find something .

 

Why would it say Proof Set?

 

How do I know if my no S dime is good or not?

 

It May, and I say may: Be possible that a 75 No S proof dime may be out there somewhere, But if it is ,,,,,, Jack Pot !!!!

 

Nope, not the one. That is a Philly. A proof would be well centered and sharply struck, with very square and sharp rims.

 

thank you I am still new at this

 

Keep at it, you'll get better.
Do you have a copy of the Red Book?
Lot's of info in it, including info on your dime and how to tell the difference.

 

Nope I will have to get that thanks so much