Hi Jonathan,

Thank you for contacting Mearto with your appraisal inquiry.
Based on the photos and information provided, and subject to examination, this is:

A bronze medallion: official seal of the Massachusetts Institute of Technology (MIT)
probably early 20th Century
of circular form, one side relief cast with the official seal of MIT, verso black. Unattributed sculptor or foundry
7 inches diameter
PROVENANCE: inherited
$200-300*
*represents a fair-market value for auction purposes; retail or asking price may vary.