Old holder 1945-s dime

Does anyone know if the "micro s" designation was recognized before this coin was slabbed? The "s" does not look close to the leaf as with the regular "s".
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Does anyone know if the "micro s" designation was recognized before this coin was slabbed? The "s" does not look close to the leaf as with the regular "s".
Comments
The micro S is a little smaller, I think. This coin was bought unattributed, and re-slabbed with micro S attribution.

Collector of Liberty Seated Half Dimes, including die pairs and die states
I looked at the page on it: https://www.pcgs.com/coinfacts/coin/1944-s-10c/5054
The "s" in the micro sticks out on top.
I think the regular S is "rounded", and the micro S has serifs.
Aside from the details of the S, does anyone know the answer to the original question? (When did NGC - and PCGS for that matter - begin including the micro S attribution?)
Collector of Liberty Seated Half Dimes, including die pairs and die states
i dont see many of them old holders much anymore, i like
Nice old holder merc
I bought this from bestclser1-Lloyd Cowle in 2010.
- Bob -

MPL's - Lincolns of Color
Central Valley Roosevelts
I compared my 1945-S regular S to my 1945-S micro S (both pieces are uncirculated) and note that the only difference in the S is that the regular S has thicker serifs. Size of the S is the same to my eyes. micro S designation implies the s used for it is smaller but that is not really the case.
Whoever is careless with the truth in small matters cannot be trusted with important matters.
Looks like it circulated to me.
Whoever is careless with the truth in small matters cannot be trusted with important matters.
My 1961 Red Book doesn’t have a listing for it, but I have The Official 1981 Blackbook Price Guide of United States Coins that does.

There are a couple of recognizable names who contributed to the book.

Micro S listed on the bottom of the page

- Bob -

MPL's - Lincolns of Color
Central Valley Roosevelts
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https://photos.google.com/share/AF1QipNCqYiMqf5WV3upssjrtWbcDONsjsmMb6PmYmR0nz1-kfh_yoic_regKXzYvAGmxQ?key=al9GRnJJVzFlMlU2M2tSRmxoWDlVOEN5ZU5hMEl3
Is there a book on the contemporaneous detection of varieties, ie when they happened and when they started to be promoted as a "rare" variety? Thanks!
Regular S. Look at the style of numeral.
Jim
When a man who is honestly mistaken hears the truth, he will either quit being mistaken or cease to be honest....Abraham Lincoln
Patriotism is supporting your country all the time, and your government when it deserves it.....Mark Twain