R/H view of attributed Roßkopf & Gerz stein. The centre tableau is blank.
Base marks on the featured stein, shown left and right.
A slightly better example of the base mark.
A.C. Bosselman & Co. N.Y. together with the Thewalt 1907 - 1920 triangle mark.
L/H view of attributed Roßkopf & Gerz stein The centre tableau is blank.