31.R. means Infanterie Regiment Graf Bose (1. Thüringisches) Nr. 31; station was Altona.
A unit mark without a number of a company and a weapon number makes no sense and are not according the stamping order from 1909.
I have some comments about the reasons for missing the company and the weapon number but these would need a lot of work to declare it and would bring me to the border of my English knowledge.
Best regards from Germany
|