Deafness in Disguise: Concealed Hearing Devices of the 19th and 20th Centuries is a digital exhibit presented by Washington University School of Medicine's Bernard Becker Medical Library. Deafness in Disguise features historic hearing devices that were disguised as everyday items during the 19th and 20th centuries, rare books on speech and hearing, and related archival material. This revised exhibit combines images of hearing devices, rare books, photographs, illustrations, advertising literature, and patents to provide a unique glimpse into the history of deafness and hearing impairment. The featured hearing devices and rare books are from the Central Institute for the Deaf-Max A. Goldstein Collections at Washington University Bernard Becker Medical Library.