WWII Genesee Beer Flat Top
USBC 68-29 Withdrawn Free of Internal Revenue tax for Exportation. Genesee Brewing Company Rochester, NY
This can is semi-metallic olive drab, and the letters are black.
Super tough Olive Drab Genesee Beer Can issued during WWII 1942-45. I believe this one to be the best known example of this can.