Historical information
The first pharyngeal tube was manufactured in 1913. This is a very early example of a curved modification of the original design.
Physical description
Metal tube with a flat plate inside a rubber tube. The rubber tubing extends much longer than the inner metal tube. There is a hole cut into the side of the outer tube through which the inner tube can be seen.
Inscriptions & markings
Stamped into metal on flat piece: BT
Stamped into metal on flat piece: ALLEN & HANBURYS LTD / LONDON
Stamped into metal on underside of flat piece: JG