www.925-1000.com

This shows it with the cross hatching. 1912 to 1924 Photo D-1
http://www.louis-kuppenheim.de/Geschich ... 3274IAYFeU

Thank you!
It is Louis Kuppenheim Germany!! Dates between 1912 to 1924 so fits in with WWI and I also found a mention of the Lieutenant in a local article on WWI out of Kansas. Charles H Gunn who was in charge of 356th in Germany.
So I assume he acquired it while in Germany and had it engraved :)

Hello I acquired a few military items, and one is a silver cigarette case either WWI or WWII with mysterious hallmarks. I spent all afternoon on numerous sites trying to find something similar. It is engraved on the front LT. C.H. Gunn 356th INFT. which was an American unit in WWI but fell under th ...