haha, reached into my pocket and found one of my green picks.
It's a Dunlop Tortex U.S.A. M3
Looks like this:
I use the H3 as well, which is the purple one. There are L, M, and H type picks (light, medium, heavy) and the number on the end seems to denote the curve of the picking edge. The M2, for example, is more rounded.
Should take a squizz at these too, they're great picks. Seem to last really well too.