people have to realize that when they post this type of info on the forum from Craigs List, it defaults to email not to the actual listing.
As for authenticity, yes, Kaiser-Frazer made a few cutaway blocks for displays at auto shows and for loan to dealers for display. During the 1980's the company I was with sent out assembled units for just such cutting work. At the time, the price was less than 200 dollars to do a really good job. You then painted the various exposed parts and hooked up an electric motor to the flywheel end (or the front crank end, whatever worked best) to slowly turn the crank so everything worked in slow motion. No doubt, K-F and the other car companies had the ability to cut in house.