Virtually everything we know about the history of the rare Belgian Liebel razor comes from the website maintained by Pierre Janvier, the grandson of the razor's manufacturer. http://www.littlegun.be/arme belge/artisans identifies s/a schlemmer prosper fr.htm In a few words, (Jean Marie) Schlemmer Prosper (1889-1953) of Liege, Belgium, began as a maker of beautiful, and no doubt expensive bespoke revolvers and shotguns. He patented a three barrel shotgun. Shortly after relocating his operations back to Liege he began a cutlery sideline business and in 1935 began distribution of Ben Hur safety razors (made by the German Apollo for distribution in France and the colonies). In 1937 he began selling his own Liebel saftety razor (from Liege-Belgium). How long the razor was produced and in what volume is unknown but an educated guess would be not long and not many -- but long enough to see variant handles and cases. I have found but a half dozen examples floating around the interwebs. Whether he himself manufactured handles for his unique razor head is not certain, as there are at least four different variants to be seen among those few extant examples, including lined, knurled, and smooth. The razor was manufactured in both two and three piece versions with at least three types of cases. Some examples follow.