since you are interested in this Most Famous race car- heres some pics of a version I bought a few years back
the model is 1/16 scale -scratch built in brass,- build date 1968-the builder was Richard Feil of Johnston RI.
it has a very detailed engine.and chassis -trans and chain drive.weighs in at 4.5 lbs.
Mr Feil used blueprints from Jim Ison to build the model.he offered to build one for Peter Helck although the deal never went through.
he was an industrial designer-silverware seems to pop up now and then on ebay-I have seen about a dozen other antique cars he built. I know of 2 other versions of this car-mine is #5