Are these date codes correct?
Q1: 1971, January-March
R1: 1971, April-June
R2: 1971, July-September
R3: 1971, October-December
Q1: 1971, January-March
R1: 1971, April-June
R2: 1971, July-September
R3: 1971, October-December
Some razors had the date code of R R. Check out this http://badgerandblade.com/vb/showthread.php/241418-Help-to-Identify-Gillette-Super-Adjustable-R-R