I'm thinking Akro here also. Check out Akro Royals and Akro TriColor patches. In spite of the faint but substantial green I'm thinking that this one wanted to be an Akro Royal (two colors, and white is counted as a color). Maybe it's an actual hybrid between a black run and a green run. Tri-Color Agates had three or more intentional colors -- white also counted as a color there. One reason I think hybrid Royal rather than TriColor on this one is that the colors are ones that I would see on Royals, not what I remember encountering in TriColor patch packaging.