Old cona depression coffee maker

Base of the mythical cona coffee maker, mythical object of the 60s, whose original design dates from 1914: the production of pyrex heat-resistant glass by the corning company just before the first world war allowed the creation of these incredibly original coffee makers. Chrome base in excellent condition and glass flask. Signature on the cona rec. Base. Trade mark united kingdom and on the upper arm "patent gb n°367529 / glass marked: trademark heg n°35096 size n°2. Must be supplemented with an alcohol burner and top container to be efficient. Height: 26cm width: 15cm depth: 12cm weight: 580g.