diameter: 1 1/4 in. ( 3.2 cm )
Inscription: reverse, at lower center of field: "WHITEHEAD & HOAG"
Brass struck medal with obverse depicting clothed bust of Edison facing right with legend below: "THOMAS A. EDISON." Reverse bears inscription upon lightning bolts in background: "THOMAS/ALVA/EDISON/CENTENNIAL/1847/1947"; inscription in exergue: "General Electric Co./Lamp/Department."
Due to ongoing research, information about this object is subject to change.