I picked up this single edged GEM Damaskeene razor in a flea market a few weeks ago. I'm not sure of the production year, but under the head it says "Pat'd 1912" I'm assuming that means patent date. I finally cleaned it up, and bought some GEM SE blades from WCS. It could use some polish but I think it is ready for the first cut in a long time. I've never shaved with a single edge razor before but I've heard you need to use a lower razor angle on the face. Wish me luck.