Damned we are talking about 35mm Jupiter lens - not about 6x6 Kiev Jupiter right ?
I remember sellings of Russians 35mm lens half a year ago. I can't remember 100% but it could be that is the same lens OP refered.
What I indeed have in good remind is the sort of sellings : I was a convolut of used lenses in different
condition (some were in bad used condition , some looked normal in concern of the age. not many of them looked realy good) But the pricing was such extreme that it was also a good price if you would had by 10pc.or 20pc. of that lens AS "Convolute" - so it was indeed offered.
Later one could have selected the batch of lens and could sell the others (in less condition).
Perhaps that is the background of today's offerings on EBay ?
with regard
PS : I remember I wondered half a year ago about the origin of this lenses (nearly 100 at all).
Can not imagine that it came out of a big collection. Who would collect lenses in that bad condition.
Next idea was some guys have traveled through the whole Russian Republic and rang at the door of each russian babushka for asking about old lenses?

....unrealistic because it would need a long time
to get that great batch. If it would be a rest of original production the condition isn't that like because it
is in much too different used condition? A serious concern of mystique

!
Perhaps at last a colector with minimal budget AND maximum ambition?