Bar has provision for necklace from factory (old school) no aftermarket frame mount required will see natural thickness of this bar as shown in PICs. Zero deep scratches on bar either side that I can see (do not have a Jewelers loop). Zero wear on either side of bar’s printing is original. 1978 Assay Certificate does show some wear paper is 45 years old also has seven numbers hand written on it. Serial number 269795 stamped gold bar matches certificate. If you are a collector looking for a 10g Credit Suisse Bar original back in the day this should meet your expectations or just add a. Favorite necklace for that special occasion.