Citation:
Frequensator tailpiece as used from 1939 to 1970, and on many "reissue" Epiphones today. This tailpiece has a nasty habit of cracking at the right angle bend of the anchor. There is not way to fix this short of replacement. You can just barely see that this anchor is starting to crack as it passes over the edge of the body.
* Frequensator: allows for a longer string length on the 3 bass strings, shorter string length on the 3 treble strings, sometimes reversed by players to accommodate short strings, high end models: 1939-1970.