Do any companies other than Shick still make the single edge injector blade? So far they are the only one I've found, mostly at about $1 per blade; anyone know if they can be found cheaper? Just got an old ('60s) Schick Golden 500 Injector Razor with Case on BST and might actually use it. Brings back memories of shaving in the late '60s early '70s, 'til it died or got lost. I remember at one point getting Wilkinson Sword blades and thinking they were the sharpest thing on earth, but don't see that they still make them.