New to the Board - Trying to get some info on a Simson & Co. Luger

[Edward Tinker]

I'd like to know the markings on the right (such as eagle 6 (E6) E6 E6 proof eagle)

There are 3 or 4 variations (depending on how youn look at it);

1. Dated, either 1925 or 1926
2. Blank chamber (all the rest); to include Simson toggles and S toggles

Also, the stock lug picture, is that two eagle 6's or two eagle 33's?

Ed