Most of the obverse design of this Jefferson Nickel has been obliterated by what seems to be a Cud. At some point in time, someone got artistic with the Cud or can a cud look like this at it's creation? Is it a Cud at all?
looks like all damage, maybe someone was gonna try their hand at a hobo nickel, if it was a cud there would be evidence of it on the reverse, and there is none...
What's left of the devices reminds me of the effects on a so called "dryer coin" but how is an area raised within the rim of a coin?
The die that struck this coin broke. A chunk fell off. That chunk is a cud. If it had broken and was still attached to the die enough to strike details, it would be a retained cud. Its confusing in that the piece that broke off the die is actually the cud and the unstruck anomaly left on a coin because the piece is missing from the die, is also called a cud. Kinda like a doubled die coin. The coin isn't really a doubled die, in fact it was the die that struck it was a doubled die. But the name transfers to the coins they strike.
Not a cud by any means. Looks like it was going to be Jaws on a Hobo Nickel but in reality it's nothing but damage. Welcome to CT.