1970 Roosevelt Dime - No Mintmark!

I came across this 1970 with NO MINTMARK! I was aware of the 1982 but not a 1970.

The '82 can be fairly valuable, any idea what this '70 is worth (beyond 10C)

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It is a Philadelphia minted coin.

 

Yep, Philly.

 

Thanks, what year did they start adding the "P"?

 

1980, for this issue.

 

This is the 1970 No S Dime you want to find. It is a proof strike (made for collectors) and yours is a business strike (made for people to spend.)

 

Thanks everyone!

 

How do you tell the difference between proof and business strike.

 

Buy a cheap1971 proof set and study the coins. They are much different tha business strike. Mirrored fields, strong striks. Once you understand they are unmistakable. Good luck!!!