The bike came with the original small hard bound book from the original purchaser with transfer stamps through the decades. The first record is 11/5/57. Noted in the inside cover page are matching chassis and engine numbers and for horsepower is shown 500cc. All of the stamps are Calcutta and West Bengal. In the mid-1990's, it was owner transferred to guy who exported it to USA. It was this guy that brought it to Houston and had a shop do an expensive update and restorative process by adding items that are not original but were necessary for function. This process included powder coating, gloss paint work, re-chroming, new tires and wheels, add-on blinkers, new exhaust and silencer muffler, misc gaskets, seals, kick starter and brake pedal and so many odds and ends, the receipts and invoices are a few pages. In fact the gas tank is now over 5 gal measure.