There are two different pieces of paper we're talking about - the "tank sticker" is actually a copy of the order confirmation copy that was sent to the dealer when the car was actually scheduled for production (says "Corvette Order Copy" on it) that shows the style, color, trim, and option descriptions, in much the same text manner as they're shown on the price sticker, but it doesn't have the VIN on it, as the VIN wasn't assigned until the car was actually on the line. The "build sheet" is the assembly "broadcast copy", which has all the little boxes on it with numerical or alpha character codes in each box which showed the guys on the line exactly which individual part went on that particular car; the numerical codes were usually the last couple of digits of the part number, and the alpha codes were the 2-digit "broadcast code" that was actually stamped on the part or was on a sticker on the part. The "Broadcast Copy" also has that car's VIN number on it. It's very rare to find a Broadcast Copy, as they were hanging or taped all over the car where the assemblers could see them, and were pitched in the trash at the end of the line; sometimes on C3's one can be found stuffed inbetween the tach and speedo on the back of the cluster.