I'm not sure if SE is the proper page...so moderators please move if there is a page for injectors/cartridge razors. I got a few of these on the bay and want to know what I have...which do you recommend for someone wanting to try out an injector?
Ben, the two on the left (cased Deluxe Trac II and the uncased razor with the round handle) are both for the Trac II system. The other uncased one with the elephant head handle is hard to ID from that angle, and the cased Wilkinson razor takes proprietary WS carts (I'm not sure if they're still manufactured).
You can find Trac II carts from Gillette fairly easily, Personna and Wilkinson also make replacement carts which are available either online on in stores.
Yep, no injector razors there. Only early carts. The TracII blades are easy to find, just about anywhere. Walmart and Dollar General are good places to start. The DG carts are made in Korea (i.e. Dorcos), but are actually really good blades, better than their DE.
The Wilks, you'll probably have to scour eBay to find.