Name and location of repository
Level of description
Double parabolic ear trumpet, 19th century
11.5 in. long. (29 cm.) extended. 7 in. long collapsed. Receptor is 3.5" diameter
Scope and content
Silver, nickel plated double parabolic trumpet collapsible device. The design features two opposing parabolic balls with a long earpiece extending from the smaller ball within the receptor part. Curved earpiece has ivory or plastic ear tip and also has a ring soldered on the base to allow the user to wear the device around their neck with a string/cord.
System of arrangement
Conditions governing access
The collection is open and accessible for research.
Conditions governing reproduction
Item description, Reference Code, Bernard Becker Medical Library Archives, Washington University in St. Louis.
Languages of the material
Scripts of the material
Language and script notes
Immediate source of acquisition