on all aspects of the photo - size, writing,
overall condition, album paper on back,
tears and/or creases, etc...
It is typical for photographs of this age
to cup or bow a bit, and not lie flat.
Unless stated on the photo, the date and
location are speculation on my part.
This photo will be sent in a plastic sleeve
between paper inside an envelope as a
USPS 1st Class Letter.
FYI - I frequently accept offers on auctions,
so if you really want an item it might be best
to place a bid or make a good offer.