German WWI Presentation Goblet

[dw171]

I bought this presentation goblet from a friend. Neither of us really know much about it. Its about 9 1/4" tall and very heavy. I was able to get a rough translation of the German. Front "Landstorm Infantry Battalion", couldn't figure out last word. The back basically translated to "In remembrance of our time together in Russia / Poland 1915-1916. I can only decipher 2 names, Muller and Kruger, Lieutenant and I think 2nd Lieutenant. One of the other names is for a battalion doctor, couldn't read the name though. The other name I have no idea. There were quite a few Muller's and Kruger's in the war. Could I get some help with further identifying the names and occasion this goblet was for? I'm not sure if this is the correct section to post this in, but I think it would be considered and award. Second post for additional pictures.

[dw171]

Here's the second group of pictures. I was able to find it is from Landsturm-Infanterie-Bataillon Ostrowo (V.21), but have not found any of the names engraved.

[von thoma]

Piece ( Goblet ) of fantasy of a glazier, very decorative and made in Bohemian glass, but not a real memorabilia goblet
Goblets were most common among german pilots in WW1 and WW2

* Where they put "Infantrie", should say Infanterie