[mikecala98]

Originally Posted by Lucas00

In baseball terms essentially it means it was taken by a Spectator or fan in an Informal setting. 99% of the time with a small handheld camera and much of the time being Kodak branded in the 40s and onward. Usually no special pose or anything like that (though you see snaps with posing that are very beautiful and desirable) basically a photo me or you would take today on vacation or your mom took of you as a kid in your baseball uniform is a snapshot.
Your photo is just that as well, looks like it was taken by a family member. Not the media or a pro photographer.

Or a nurse! Thank you!!