Does anyone know about Vintage safety razors?

Kind of a broad question...double edged, single edged, injector? All three have their collectors and users. Best place to start is one of the shaving forums, such as Badger & Blade. Lurk for a while and many of your questions will be answered. Double edged, particulasrly Gillettes are the most popular and can go from $3 to $300 depending on rarity and condition. Injectors are next in popularity and the lowly Gems, Ever-Ready and Sharps which use single edged blades are on the bottom. Many of these can be found on E-bay for 99 cents. All, however, are still usable and can deliver a close shave. Like most things we know a little about safety razors, what would you like to know? See ya, Country Joe