System Büttner coffee maker

"System Büttner" coffee makers (German: Büttner-Kaffeemaschine) have been a type of manual and semi-automatic coffee makers combining coffee steeping (infusion, full immersion) with drip-filtering (percolation). == Overview == The idea to combine steeping with drip-filtering was utilized by the Berlin-based coffee roaster Carl Artur Büttner (also written as Carl Arthur Büttner) in his 1926 invention of a manual zero-bypass flat bottom coffee maker consisting of four parts, all made out of porcelain: a filter pot (Filtergefäß / Oberteil, "O") with lid (Deckel, "D"), saucer (Ablaufteller / Unterteil, "U") and coffee pot (Kaffeekanne, "K").

Source: Wikipedia — System Büttner coffee maker (CC BY-SA 4.0)