I've a 1912-patent GEM I'm watching on Ebay, and it's a cherry specimen, but I'm curious. How does it shave? I've never used an open comb.
1912s are great, very close shave and yet easy to use. I'm puzzled by the open comb comment, though. I've never seen a 1912 that had one, although I don't claim to know all the variants. Does the razor you're tracking look like the one in this picture from the wiki?
Open comb Gem 1912, "lost in the crowd" of an Ebay group buy I made