Karnak Medium  Vorgeschlagen von donshottype 


Futura Medium  Vorgeschlagen von donshottype 
Intervogue Alt Medium  Vorgeschlagen von donshottype 

Metal type, perhaps from Intertype -- a lower price competitor to Linotype.
The main title _GREEN BOOK_ is a derivative of Memphis designed by Rudolf Wolf at the Stempel foundry in Frankfurt, Germany in 1929.
Intertype's Cairo Bold is one of these derivative fonts. As you can see from the following Intertype specimen, all letters are close, except for _G_ which as a bottom serif, and the leg on _R_:

Intertype had many fonts and another one might be a match.
Very few Intertype fonts are available in digital form.

I agree with donshottype, this is a slab serif typeface that has probably not yet been digitised. The closest modern font would be Memphis Bold or Lev Serif.

Found it.
Another derivative of Memphis.
Karnak Medium by Robert Hunter Middleton for Ludlow 1931.
Digitized by Steve Jackaman and Ashley Muir from the Ludlow drawings.

So far have not found the metal type match to the sans serif.
However, it is obviously a variation of Futura Medium, available in various digital versions from major foundries
Note the clipped tips on _A_, _N_ and _V_ in this metal type.

Intertype's derivative of Futura, sold as Vogue, had the clipped tips on _A_, _N_ and _V_ as alternates.
It has recently been digitized as Intervogue.
Closest so far, except for the _G_.