The extra webbing of the outer Nuovo Record chainring obscured the portion of the inner ring where the tooth count would normally be stamped, therefore, the stampings were put on the opposing side, able to be read easily from the non-driveside. When Super Record rings did away with the extra webbing, the inner rings could then be stamped in the same way as the outer ring. This photo should serve to explain my thinking:



At least that's my theory, and I'm sticking to it

DD