I thought I was getting an E4, but it turned out to be a G1. Even better, because it turns out to be a birth era razor. The two patents along with the Schick Injector stamp put it in 1946-47 era. They started stamping Eversharp-Schick in the middle of 1947. So, that is about as close to a Schick birth year razor that I can get, 1947 being my birth year. It had an old blade in it. It was rusty and had no slots in it. I removed the blade before cleaning.