I'd like to tell you what issue it is in, but it's got to be about five years back. If I was in my shops library right now I would have a go at finding it. It would be a search though. There was also a article in POCI Smoke Signals way back, but that club really doesn't feature flatheads that much.
I tried to find a image on google but that was no good. There is some talk but no images. The darn thing kind of looks like a slightly smaller British WW2 land mine. Bout 5-6" dia. and about 3" thick.
