My 1868 Trapdoor has 4 cartouce marks which are quite clear. The first is ESA, 2nd is FWS, 3rd is MTH and the 4th is ESA. Who is MTH? I don't see these initials in Dick Hosmers book but several are listed for the 3rd cartouche. Thanks
IMG_1427.jpgIMG_20190325_172926486.jpg
IMG_1427.jpgIMG_20190325_172926486.jpg
