I think that these are by Hampton Miniatures out of New England. See the Crown Military Miniatures site, look under Hampton, then Around the World. I first saw this company featured in Yankee Magazine back in the late 70s or early 80s under the name Warwick, I think. They do strangely attractive toy soldiers, like someone tried to crossbreed Imrie-Risley with Playmobil. Interesting stuff.