Vijftigjarig bestaan van het Instituut voor Doofstommen te Groningen, opgericht door Henri Daniel Guyot, 1840 1840

This commemorative medal, created by David van der Kellen in 1840, celebrates the 50th anniversary of the Groningen Institute for the Deaf. The obverse features a portrait of Henri Daniel Guyot, the institute’s founder, while the reverse depicts a laurel wreath and inscription, honoring the institution’s dedication to educating the deaf. The medal is a testament to the dedication to the cause of educating deaf people and a reminder of Guyot's significant contributions.