Thank you…..And so it shall stay on the jacket…

Evaporust also comes in a gel formula. Easier to control.

The flag is Vietnamese machine embroidered

Thanks much.. wanted to make sure there was no historical significance… 👍

wOOt! I'm back! Apparently I was banned from visiting the forum for some 10 days. No idea why. Also back from a extremely hot weekend in Germany, visiting the Panzer museum in Munster, Gedenkstatte Bergen-Belsen and the Helicopter museum in Buckeburg. On the way over we also stopped at the Memory Libration Museum in Nijverdal.    I got a bellyful of WW2 Armor and the complete abridged history of helicopters.  Not to mention a metric tonne of schnitzel, pizza, meat platters and apfelschorle.  

Full uniform photos would be helpful. What is a “John Rambo” vibe? Hollywood’s made up portrayal of a Vietnam vet?

If it was a local vet, knowing the state might help with your ID. 

I would say US commercial made and 70s or 80s. 

Attached to a 69 dated M65 the vets sister sold it to me.. her brother “wore this in Vietnam “…. I like the look… has that John Rambo vibe is attached to the left shoulder   does the flag look theater made? 

Here is an Army 3" HE that had rust as severe as your lower picture. I did not want to damage the yellow paint. It worked. Also, be sure to dry throughly ( I put out in sun) then coat with Renaissance museum wax. I coat ALL my examples with the wax.