Upvote:2
This is great. As a rule of thumb, always buy icons larger than you think you'll need them.
So, this is a yearly Menaion icon. The Menaion is basically a book that tells you, for each month, what saints are celebrated on each day. Accordingly, this is an icon with a saint for every day. (We usually commemorate many, many saints on a given day. This also doesn't include stuff for movable feasts like Pascha.)
I'll point out a few big ones for you.
Upvote:3
"Plenka" means "skin" or "membrane" in this context and refer to material covering the icon.
The icon itself called "all saints" and depicts major saints in order of their festive days during year. Twelve big sections correspond to months, starting from January. Big caption above the section is month name.
Small captions inside each section contain festive description or saint's name. Red letters on the left are church-slavonic digits - it is a day number in the month corresponding to saint/festive.