this is an Aelita from the Murom radio plant, probably made in 1983. it has a midi kit and inverted keys so someone has already done mods on it. it was shipped out of Odessa under shelling, and I think it left working but last I checked I couldn't get a tone out of it. might be a broken contact, might be dead capacitors. we'll see.
info + datashees at http://ruskeys.net/eng/base/aelita.php