Advertisement from der Waffenschmied for 25 August 1921 - ”A high quality and reliable weapon of simple and solid construction, with high shooting performance.” Only the 7.65mm pistol is advertised.

Listing in the 1921 GECO Catalog - ”New! A high quality weapon made of the best material, simple and solid construction with high shooting performance and the following advantages:

Natural and firm position in hand.
Long and solid slide guidance.
Firing pin safely stored against loss.
Easy detection of whether the weapon is loaded.
Easy detection of whether the weapon is secured.
Separate, automatic backup when the magazine is removed.
Comfortable single loading without using the magazine.
Conceivably simple handling when assembling and disassembling.
Small number of parts when the pistol is dismantled.”

From an article by Gerhard Bock in Kugel und Schrot (Bullet & Shell) for 15 March 1925. The text at the top says: “Recently, this pistol has also been made with a 10 cm barrel (Fig. 3).” He goes on to say “...it corresponds exactly in length, weight and grip position to the 7.65 mm Stock pistol. For this reason, I think it is the ideal weapon for practice shooting. The precision is only slightly inferior to that of the long pistol (with 19 cm barrel). I have shot several times at 20 meters on the small caliber standard target series, and I cannot do better with my long-barrel target pistol.” A later issue (15 May 1925) has a chart of small caliber German pistols, and the 10 cm Stock pistol is marked with an asterisk and a note that states: “The pistol No. 29 is only made to order.”

Listing in the 1928 AKAH catalog, p. 27, showing all the German-made automatic pistols for sale that year. This is the earliest advertising image we have located for a 6.35mm Franz Stock pistol.

Listing in the 1935 AKAH catalog, page 106, featuring both the 6.35mm (No. 9409) and the 7.65mm (No. 9408) Stock Pistol. It also lists a No. 9406 described as “Just like No. 9408, 10 rounds, caliber .22 long rifle (very recommendable as a practice pistol becuse of the cheap ammunition.”

Listings in the 1937 Geco catalog on pages 121 and 126. For the first time we see the 7.65mm Type 2 pistol. The 6.35mm pistol is available in a blue or nickel finish. The .22 caliber practice pistol in the same form as the 7.65mm is available (stock number 1114). The target pistol is listed on a separate page with other target pistols.