Decided to participate as well - though I'm not sure if I count as an ancient coin collector

...It was actually somewhat tricky to find a photo of me that was tied to my online identity (as opposed to my regular identity).
Fortunately, a very nice one showed up recently.

This photo is actually surprisingly close to what I look like now... even though back then my hair was something like a foot longer than it is today.
(You can't see any of the extra hair because it was all tied up in a neat ponytail behind my back. I didn't realize it was
that invisible until I actually looked at the full-sized file of the photo, however.)
That said, IIRC, I've sadly since lost the nice cap (actually lost, that is, not misplaced - I unwisely kept it in my hood during the non-raining parts of rainy summer days, and one day it fell out while I was running to catch a bus).
Might have been a different nice cap, however.
Cropped from
this file (a photo from a geohash expedition report).
As it happens, both the original photo and the crop I'm posting here are mirrored (I have no idea why); sadly I didn't find a "mirror" function on the CCF optimizer.
(And yes, that's June, and I'm pretty much dressed for the weather. Compared to most American and European places, Moscow has a fairly cold summer.)
[EDIT: fixed a typo]