I would buy that for less than 5 bucks.. And i probably wouldnt buy it because the date is missing. But thats just me.
it looks like someone had an obsession of making coins a necklace... lol thats what it looks like you got right there to be honest! maybe on both coins too. looks like they gave up on the first coin you posted. thats without knowledge of this kind of thing.. but i am sure thats what its for. not sure, but i think it might be a russian coin, or somewhere in that area
I don't know anything about counter stamps but I think they are used to show authenticity or something. It really looks like our collection is someone using their imagination