During the early years and at time of WW2 they were yellow then change during the war because they could be seen in the green jungles. Grey with yellow band or total grey and drab green were used after war started.
Yellow meant explosive or like yellow means to most "caution"
hope i am doing this right. The yellow grenade is a practice grenade used during training. Don't remember when they stopped using this color but i know they stopped using that type of grenade around the early 70's
maybe someone can help mith this. i am trying to find out some information on my wifes family. i have been told that both her grandparents were veterans of war II. and i don't know where to look.can some one help? thanks