Couldn't find another thread on this.
In the past few years, I've been seeing repros of these red sheet metal pieces that go near the handle of a Jerry can (Ron has them as well). I assume it's for the octane of the gas. But I don't know how common they were originally and don't remember ever seieng a period photo of one being used. How common were they? I have several WW2-date Jerry cans but wouldn't bother buying any of these repro 'medalions' if they weren't that common back in the day...
Home of Charlie the Wonder Pup!
1944 Willys MB #366014
MVPA, REMF, former US Army Captain