As Paul said,
Tall Bearded Iris (Iris 'Sam Davis') is a Tall Bearded Iris introduced by Thomas Washington in 1934. The color class R7M indicates it was a "red or pink toned self" which probably means it was a burgundy(ish) bitone since there weren't any truly red or pink bearded iris at the time, precious few selfs either.
Hard to say if it still exists. You might try contacting Jean Richter (
[email protected]). She's the chairperson for the committee on cultivar preservation in the Historic Iris Preservation Society.
