A tragus shaped telescopic “Audiscope” antique ear trumpet made from black Bakelite. In the retracted state the internal section is held in place with a clip within the external trumpet.

The ear piece is also made from Bakelite and is detachable and unscrews with a firm thread. The base of the trumpet reads “Trade Mark Audiscope Pat Pend. Amer. Earphone. Co. N.Y.” This company made non electronic hearing aids in the 1920s. Retracted length 170 mm.

• From the Phisick collection