apparatus for liquefying gases?
Date: 1850-1854
Inventory Number: 1996-1-0353
Classification: Air Pump Accessory
Dimensions:37.5 × 26.5 × 36.5 cm (14 3/4 × 10 7/16 × 14 3/8 in.)
Accessories: glass vessel with stopcock
Description:
A wooden board, supported by three turned feet (one missing), has on top a heavy metallic cylinder painted green. Inside the cylinder is an inverted container with a spout on top. The spout goes into the brass stopcock on the glass vessel, the latter made to slide into the metallic cylinder. There is a hole on the board, which may have been made for a hand air pump.