I'm not sure but great pics. I am sure we could do better on edge lettering though. There was better work done on edges on classic U.S. coinage.
where is the doubling? on the edge lettering? Keep in mind with edge lettering it's incused, and on circulations strike coins (not proofs) it's put on in a separate process from the strike. these dies don't have doubling, but coins can get stuck, or run through twice, being fed through the machine that fires them out the other side with the lettering on the edge. I guess what I'm saying is, yeah edge lettering doubling exists, but it's either incused machine doubling, or it's just straight up machine doubling by being run through twice. mechanical doubling I think. https://doubleddie.com/144822.html Doubled Die is literally a die that was made with doubled impression, and all coins struck by that die display the same over and over. still probably worth something to someone though. it's not that extreme to command a high value though. There's a buyer for anything so probably a couple dollars I'd think.