Steve Your 22 is a 1952 model the serial numbers for 1952 started at 1776 ended at 20046 Which makes yours one of the earlier ones. Head lites were an option and did use a cast iron arm, so I believe yours had that option new. Many times if the farmer installed the lights them selves they just drilled a hole for the mounting bolt where ever they thought they would gain the most from them.
I have a couple of paint codes in my lit some place, Sherwin Willians was the paint supplier for Massey Harris and some napa stores that sell paint has those codes I am told. We don't have a Napa store in the area so can not confirm that. I found a vermillion sold thru ACE Hardwear stores @ 25 dallors a gallon was a perfect match for the Massey red, problem is it isn't a long lasting paint. I didn't know how to spray paint so used it as a learning tool as it was much cheaper tha t $100.00 gallon PPG stuff. Speaking of PPG paint, I won't use the stuff any more, fades fast it seems and turns pink. I painted my 38 101 R with the stuff and must buff it daily at shows when it is hot and sunny. I'm swithing to Dupont.
Geez I was sure that the water, oil pressure and amp gauge were standard by 1950 on most makes of tractors. I think My sending unit is in the head I'll check it out. Most of the gages I have seen come complete with the sending unit. I know on my 20 that there is a plug in the dash where the water temp gauge went.
Al
