Diffusion pump

Description

A diffusion pump is a type of vacuum pump in which a vacuum is obtained by a stream of a pumping medium - vapors of boiling oil or mercury. Hanff & Buest – manufactory ca. 1930, Berlin Jagiellonian University Museum Collegium Maius Inventory number: 4265; 265/V https://muzea.malopolska.pl/en/objects-list/2757