Quoted:
Ok the 2nd pic down shows two Eagle N proofs. If you reference Rankin Walther Volume III page 60 it denotes yours as a model 1936.

The 1936 Olympia was a break through design in modern target pistols, the first semi auto with an internal hammer, it is the basic Walther PP design, modified for the internal hammer.

German shooters took gold medals and the first five places in the events were they used the Olympia Pistole.

The Fünfkampf models had detachable weights that could be slid inside the rail under the barrel for best individual balance. Cal. 22 l.r. and .22 short conversion, 7.4 inch barrel

Standard model came without the weights.

Rapid fire model in .22 short only

Modell 184J, Jägerschaftspistole, 4 inch barrel

Schnellfeuer (Rapid-fire) Modell #?, Cal.22 Kurz (Short), 7.4” barrel, aluminum-alloy slide, with tapped holes and weights as in the Sport Model.
Füenkampf (Pentathlon: pistol shooting, epée fencing, swimming, show-jumping & cross country) Modell #?, Cal.22 L.R.,9 ½” barrel with optional threaded muzzle for suppressor. Grooved and tapped holes for barrel & frame weights. A loaded chamber indicator.

Sport Modell with 7.4 inch barrel and weights