Bison

22¢ Bison, size #6¾ or #10 regular or window (5/3/85)
0.35
U608a ...

Robison & Co.: U. S. local post, Brooklyn, N.Y., 1855-56.
Robotic Containerization System: USPS term for automatic handling of sorting and loading of trays of mail to containers or pallets for transportation.

Figure 7. This Gambian 3-dalasy Roy Orbison stamp (Scott 1670a) fits in a topical collection of rock 'n' roll. Click on image to enlarge.
Figure 8. A Botswanan 4¢ Drum stamp (Scott 147). Click on image to enlarge.

Slang for the Indian Head nickel, struck from 1913 to 1938. The animal depicted is an American Bison.
Bulged die
A die with a small indentation, formed from clashing. Results in "bulged" coins.

See also: Stamp, Washington, Roll, Used, Official