Start by reading this AMERICAN BEAUTY 350 and 460 thread.......
http://www.net54baseball.com/showthread.php?t=124927
The AB 350 (frame). the BL 350. the CYCLE 350. and the DRUM 350 subjects were printed circa Summer 1910 and essentially share the T206 fronts.
I call this the "A-B-C-D" connection......
TED Z