hi, please see the attached photo of the headstamp of an 1882 11mm GRAS cartridge. I am puzzled as to why there appears to be 2 manufacturers codes. Presumably ART is for Atliers de Construction de Tarbes but what is the 'T S over A' and why apparently 2 manufacturers codes? The bullet is lead filled brass if that makes a difference.
many thanks, Dave
many thanks, Dave