I saw this on ebay this morning. The seller suggests that this is an early regen engine prototype that came out of Robert Goddard's workshop. That would be cool! The seller makes no claims of having any proof to go with it and with a price tag of $325,000 and a short 3 day inspection period before considering the sale final, it seems unlikely that a buyer will come forward. It does seem that with enough time, that some research and material testing it would be possible to determine if it were at least plausable...
