Which brings us to some distributors [catalogs] calling this product Crest "OR" Seal -- of which all definitions of "crest" and "seal" are very appropiate.

Hear's a good one from George & Co.:

A celluloid disk is inlaid in the center (we know better) of a chip and a monogram or intricate design is printed on the inlay.

Noll & Co.:

Our Seal and Crest inlay chips are available in....

B.C. Wills & Co. says:

The design is ptinted on the "reverse" side of the transparent inlay which prevents wear. This answers why we sometimes see Crest & Seal chips worn down to through the inlay and the graphics still being untouched. And this was sixty years ago. I see new Chips that are shot in one year, today!

JB