Check out the this thread . . .
Just page through the thread or search the thread for "Blackies" to find pics of both main types and Anti-Blackies too . . .
I think the two on the left are Akro, and the upper right may be too, it looks like a brushed patch error. I'm not feeling Pelt on the lower right, either - they all may be dug Akros, IMO.
I pulled out a few examples to get you started . . . there are more of each type in the mix, and there are other types in there too. š
Vitro Yellow Jackets
Vitro Blackies
Vitro All Reds (later style)
Marble King Patch and Ribbon (earlier style)
single color ^^
tri-color ^^
Bumble Bee^^