Hi Agrippa - it has this shell like (scallop) appearance. Looks to be folded metal over metal and the rim, other than damaged, doesn't appear to be burnished to the extent it can account for the amount of material on the reverse. I saw someone mention in a Cud thread the term 'finned rim' or something close, so I thought maybe this was an example. I need to do some research, but tossed it out there before hitting the hay.





















