This auction is almost over but if you want a cool item to display in your man cave this might interest you. Not mint condition but still decent. https://www.ebay.com/itm/203710723177?hash=item2f6e1af469:g:k9AAAOSwEdxhnErP
Back in the 80's I bought a CASE of those!! Sadly most lost pressure before I used them all. I do still have one 440 on an engine stand and a 340 painted with them