The Gray-Backed 1952 Topps cards, sometimes referred to as Canadian in origin (which they are not) all fall in the third series (#131-190) and persist as a tough subset to collect. This PSA 1 (MC) of Johnny Klippstein has had an adventurous life, with quite rounded corners and creasing evident. as they are not often found in nice shape. The reverse is looking better than the front while the color of the image, as is often the case with these, is muted.