Need ID help with more parts from estate

[Spraygun]

Hey, I,ve spent the last couple hours out in front of one of the buildings, there is an area 100ft by 30ft that has totes, boxes, etc Alot of water danage by amazingly some nice stuff.
I need some help IDing,

These were totally submerged, no rust, just some mud on them. The chrome exhaust extensions have a small entry hole, around 1 3/4"


These were laying under some interior parts


Any ID help will be appreciated. G

[mk]

The nameplates look like shoebox (49-51) stuff up to early fifties...



mike