Austro-Hungarian Steyr Pieper Pistols



6.35mm Steyr-Pieper Pocket Pistol Model 1909

Approx. 130500 were manufactured by OEWG Steyr 1909-1915 and 1919-1932?
Type: automatic pistol (blowback)
Chambering: 6.35mm Auto (.25acp)
Length overall: 125mm [4.92"]
Weight unloaded: 325g [11.5oz]
Barrel: 57mm [2.24"] rifled
Magazine: 6-round detachable box

Originally intended for commercial sale, this is the pocket version of the Steyr-Pieper M1908 pistol and was built to the patents of Nicolas Pieper of Liege, Belgium. This was an unusual blowback pistol with a tip-down barrel. The barrel was retained with a pivoting bolt and it was held by a thumb-latch barrel-locking mechanism. The recoil-spring rod ended in a hook engaging a lug on the slide, disengaging automatically when the breech was raised.

The Steyr pistol differed from the Pieper pattern in the following minor details: The angle of the pistol grip was increased, the grips were attached with 2 screws instead of 1, the barrel was lengthened, the rear sight was revised.

This was a favorite pocket pistol for Austro-Hungarian Military officers and Police departments.
Manufacture was suspended in 1915, resumed in 1919, and continued until 1932 (or until 1939 according to some sources), however, no post-1932 dates have been reported. The grips have the 'OWG' logo and 'STEYR'.

The Legend on the left side of the frame: 'OESTERR. WAFFENFABRIKS-GES. STEYR' and on the left side of the barrel: 'PAT. No. 9379-05 No. 25025-06'.
The 2-digit manufacturing date, such as '14.' for 1914 appears on the left side of the barrel.

Pistol shown with the slide open. The Legend on the right side of the frame: 'N. PIEPER PATENT' and on the right side of the barrel (not all pistols): 'NPv' (Nitro-Proof mark) and further forward on the barrel: 'PAT. ENGL. No. 16715-08 + No. 40335'.



Post-War 6.35mm Steyr-Pieper Pocket Pistol Model 1909

Post-War pocket pistol with the new Austrian round 'STEYR' logo grips. The left and right side legends were similar to the pre-war version until about 1928, when 'MADE IN AUSTRIA' was added after 'STEYR' on the left side of the receiver as shown below:

Manufacturing Date - Serial Numbers Correspondence - as reported

Year   Estimated            Actual serials reported
1909:      1 -  25000        3704 - 21692
1910:  25001 -  40000       31465
1913:  40001 -  42000       41394
1914:  42001 -  51000       43225 - 48910
1915:  51001 -  54000       51365 - 53388
1919:  54001 -  74000       59777 - 86510 (overlapping range)
1920:  74001 -  85000       75025 - 89093 (overlapping range)
1921:  85001 - 103000       85500 - 102070
1922: 103001 - 110000      104399 - 109393
1924: 110001 - 120000      120022
1926: 120001 - 124000      118719 - 121300
1928: 124001 - 128000      124241 - 127800
1929: 128001 - 129000      126784 (out of range)
1931: 129001 - 129650      129513
1932: 129651 - 130000      129732
????: 130001 - 130500      130428 (year unmarked)
Please submit your serial number(s) and dates to the author to update this data.


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