Own a piece of race face and mtb history. Sizing (175mm) on the back of the cranks are hand engraved and did not come factory etched in like all others of the time. Scratches and wear to the chainrings. Chainring crank arm by the pedal hole has some of the surface carved out(wear). None of which would affect the functionality of the cranks. Purple was obviously darker but they faded in to a nice even light purple. For square bb Please check out the photos.