Is this 1945 Mercury Dime a Micro S? I bought this off eBay since it looked like a Micro S. It's in an old MS-65 PCGS holder and isn't designated as a Micro but the mintmark looks like a micro mintmark to me. Does it look like a Micro to you guys?
Looks like you score a nice deal! Congrats! Redbook has Micro S as $100 in MS65 compared to $30 for the regular.
I'd say not Micro S. Look at the serif at the top of the S of the picture you posted and compare it to the Micro S picture desertgem posted. Yours has a ball ("rounded") serif while the Micro S has a clear rectangle/square serif. The Micro S also is less wide than the normal S, which yours seems to be.