The subject title says it all… There seems to be an extra bit of lead on the upper portion of this cartridge case. There also appears to be a small crack around that lead (maybe from hot lead?)
This cartridge in particular is a copper cased 12mm pinfire, manufactured by “A.J. Dits Et Cie”.
The headstamp (which is hard read, even without my poor photography…) is " DITS * ST GILLES * "
Is it “normal” to find cartridges with this lead overlap, onto the case?