Original 1904 Thermos Flask – Dated Feb German Made Vacco Seal Lid Patent No 4421

Antique 1904 Thermos Flask Original first production model of the Thermos flask which was manufactured in Germany to the British Patent & dated 22nd February 1904. Fully original & complete with the Vacco Seal cork/plastic inner lid. Stamped with matching dates to the lid & base plus patent number of 4421. Very rare piece that is ideal for a thermos collector. in good condition overall with only light wear & has no damage, the glass inner liner is very clean & free from damage. Size – 24cm High x 10cm Wide x 7cm Deep Original 1904 Thermos Flask – Dated Feb German Made Vacco Seal Lid Patent No 4421