I didn't stop searching for R.H.O. Mfg. Co. - products or any possible information. They made pin-ball machines before the war but were they contracted by the Government or as a sub for some other company during WW II? I couldn't find anything, after checking long lists of U.S. companies participating in the war production.Now to find out what bad boy this is off of
Judging merely by some of the Osbrink-patents I think the company was involved in fine casting of alloys (aluminum, magnesium etc.) mostly in the 50s-60s.
And here is what I found today:
This is a very complex casting by R.H.O., isn't it?
Here is the article where the photos come from:
It's from a magazine called Missiles and Rockets from September 15, 1958.
O.K., that's the first proof that R.H.O. was manufacturing parts for Chance-Vought (but maybe for others as well).
For those who know it: could the part in question be a part of a guided missile?
Cheers!