German planes captured in Zeppelin Hall at Winiary, Poznań 1919, shortly after successful uprise  (photo by courtesy of Muzeum Lotnictwa Polskiego, Cracow).

Storage of German propellers at Ławica aerodrome, Poznań 1919 (photo by courtesy of  Muzeum Lotnictwa Polskiego, Cracow).

Airmen of 2nd Reconnaissance Squadron, Albatros C.X 9259/16 (CWL 4.1). At the background early CWL propeller with visible decal and non typical 6-pin hub. As confirmed by several sources Mercedes D.IV engine was fitted with 8-pin hub. Could it be a kind of...

Nice group picture with Breguet 14 aircraft fitted with CZL propeller. It looks like one of the early ones as except typically used ash also some darker wood was selected. Picture taken in Bydgoszcz or in Dęblin (in this case it  would be 1928 or after). Picture...

CZL propeller in one of the early version decal. Produced approximately around 1921-1922. Attached to the engine (yet unknown type), used for training. Picture taken in Bydgoszcz, at the School of Aviation Mechanics, (1922-1923). At the background hangar with...

Unknown (but surely French) propeller in one of the Polish Potez XV. Produced approximately around 1923-1924. Attached to the engine Lorraine Dietrich 12DB (400HP). Despite relatively good quality it is hard to say what was the producer. It looks like Merville is one...

In 1924, during "Aviation week" the 2nd Air Regiment organized aviation exhibition in Kraków. Among other exhibits the Ansaldo A-300 aircraft was presented. It was equipped with propeller manufactured by Warsztaty Centralnych Zakładów Lotniczych. Another three...

Polish Ansaldo A1 Balilla with CZL propeller. Picture taken on Ławica Airport, 1926

JD-2 aircraft with a Polish CWL Propeller. Picture via Roman Postek, many thanks! JD-2 aircraft was designed by Jerzy Drzewiecki, member of Aviation Division of Students’ Mechanical Association of Warsaw Technical University in 1924/1925. Plane was equipped with...

Nice INTEGRALE propeller picture, manufacturer's and Tonkilaque decals visible. Photo from the collection of Michał Krawczyk, Warsaw, many thanks!  According to Mr. Michał Krawczyk, the man at front of the aircraft is Mr. E Piorunkiewicz, foreman of Centralne...

RWD-2 aircraft registered SP-ADG with Schwarz propeller. Published by courtesy of MLP Cracow. A part of the same picture with a better view for the propeller. Picture via Roman Postek, many thanks!

Nice picture of line mechanics standing at front of Potez XXV . Picture taken around 1929-1931. As inscription from the reverse side indicates, this particular Potez belonged to 35 Polish Squadron, so possibly the picteure was taken at Poznań Ławica. The propeller -...