About the propeller. The propeller was produced by Polish factory Integrale, Warsaw. Collection of →Muzeum Techniki w Warszawie, not on regular exhibition.

Construction. The propeller lamination consists of 6 most likely ash plies. The outboard length of approx. 670 mm of leading edge  has aluminum sheathing. Propeller covered by black Tokilaque coating.

Aircraft and Engine. The propeller was used for Polish built Hanriot HD-14 or H-28 . The propeller was working with 9-cylinder rotary engine, Le Rhone 9C Engine cubic capacity – 10,89.

References: Samoloty i Zakłady Lotnicze II Rzeczypospolitej, Mariusz Wojciech Majewski, ZP Grupa, 2008