They didn't photograph very well so here's
the two best shots much enhanced; to not much improvement! They are Semi-flat
(Demi-rond) mazac/zamak castings of troops on parade; basically the USSR
equivalent of parade 'toy soldiers', such as the Britains produced hollow-cast red-coats.
The insert was printed as two panels on one
sheet which was folded in half and placed over the figures before the plastic
sheet was vacuum-sealed over the whole; consequently it has been a bit
scrunched-up!
Two similar figures to the right of a spare
I have. The spare has traces of an overall layer of silver paint which has
mostly worn-off. The gold figure is similarly coated and from a similar set,
while the female medical soldier is from a more realistically posed set.
When I first discovered the Russian forums
(about ten years ago) I spent an afternoon downloading all the images I found
without knowing what I was doing, or which 'thread' I was in; due to my lack of
Russian language skills.
I can therefore only say that there are
quite a few of these sets and they are all slightly different, but as far as
English-speakers go, we now know (thanks to Mimi) one of them was from the Gidromana plant in Melitopol - now in the contested (by Russia) area of Ukraine!