For consideration is Gordon Smith compressor head. This went on a 4 cylinder Ford model A engine and converted the two middle cylinders to compress while the outer 2 remained as normal. The serial number is unknown because for whatever reason it was scratched out. All the surfaces seem in good shape with a few bits of rust. I did not try to remove any pipes, the spark plugs or the distributor for fear of breaking something and that would be up to the purchaser.
I believe with some clean up and a few parts this can be made to work again!