Signedunsigned
Inscribedin pencil on box lid: Not / Aluminized / 8 X 10"
in black crayon on box lid: 8 X 10 PLATE / GLASS
in white crayon on box front edge: PLATE GLASS
Historical AttributesIt is assumed that the Harvard College Observatory was preparing this plate glass to be aluminized by A. B. Focke of Brown University.
ProvenanceHarvard College Observatory, circa 1930s; Harvard College Observatory, Agassiz Station; transferred to CHSI, 1969.