1966 sms with extra number

[tinycreek]

i recently came across a 1966 sms with a number 7 right in front of the ear and am wondering what this is

[Daniel]

Hard to tell from the photos but it could have been scratched into the coin. I don't see it being a dropped letter since there's no 7 on this coin or the dies that struck it.

[Paul]

reflect?....the flip? :dunno

collectors must keep a few thing in mind when posting coin pics:
:eureka:
1. remove them from their 'flips', & image them 'naked'

2. always provide the 'obverse & reverse', no matter what

3. 'spin' the coin around (because every lighting setup is different), 12, 3, 6, 9 o'clock when you picture it. don't worry about the coin being sideways or up-side down....most of the time, what you are seeing will disappear/re-appear (reflect)

[Varieties-4-u]

Your "7" is interesting to me. Here is a 1966 SMS Roosevelt dime with what looks to be a number "5" dropped on the cheek. I did the research and in 1966 due to the high volume of 1964 Kennedy half's ordered and the mint changing the packaging of proof sets, the 1966 SMS set was being put together along with 1965 SMS sets up into September of 1966. This would/could explain the 5 on the cheek of my coin. However the 7 on your Roosevelt I think it would have had to have been being packaged up into 1967. As you can see in my picture there is an overlay of the number 5 from a 1965 SMS dime taken at the exact same distance, magnification etc. and placed over the mark on my coin, I would suggest maybe you get a 1967 SMS dime and do the same to see if it fits.
Good luck!