1945 Mercury Micro S ?

yup, both micro S.

It's important to remember that there are three "S" mint marks for 1945. There is the large, medium, and micro. I'm not saying these are not micro S, but they do look more like the medium "s" to me. Someone please prove me wrong by posting pictures of all three. If I have a chance, I will do the pics and maybe give us something for comparison.

P.S. I hope they are micro "s", it's a really cool variety and exciting to find. One other reason I'm saying this is becuase they are not all that plentiful, so to find two would be really exceptional. My experience says that you'll look at about 100 1945 "s" cents and probably find 1 or 2 at most in that lot, if that many. Again, I hope I'm wrong.

Here's an excerpt from The Complete Guide to Mercury dime:

1945-S is an extraordinary issue within the Mercury dime series, as no less than three different mintmark punches were employed. The Knob Tail S used in 1944 is the most common and accounts for the two repunched mintmark varieties, one of which is S over horizontal S (photos).

The Trumpet Tail S used 1941-43 appears again in 1945, and this is the rarest mintmark style for this date.

Finally, the popular Micro S is unique to this date alone. While not especially rare, it has long been collected as a mainstream variety and therefore is treated as a separate issue (see following page).

All three mintmarks are reportedly found mated to "broken nose" obverse die states. Also within the realm of such minor die state phenomena, a reverse die crack is known from the top of letter E in ONE to the rim. Also reported is the usual crack from wingtip to rim.

and of the others, I was the 'finder' of the 1916 S large & small MM's.

However, Coin World did not list it in Collector's Clearinghouse.