I Have two old sleds in excellent condition a 1972 Puma with 440 Kawasaki and a 1975 Cheetah 440. I'm Wondering what kind of values they hold. Anyone with a resource to track production numbers, market values etc... Also, I can't find the serial number tag on the chassis anywhere on the Puma. I only see a stamp of numbers on the top of the fan housing of the engine which I presume is the engine serial number. Is there any stamping on the chassis elsewhere I can find to document? Thank you! E-mail [email protected] or open forum.