Object detail

Department
Maker
Production place
USA
Signature & date
engraving:front:"GAMMAX No.2/ PAT'D AUG.13.1912/ Wollensak U.S.A."
Measurement type, part and reading
Dimensions:0 - Whole:Dia 6cm (Dia 2 3/8")
Dimensions:0 - Whole:D 3.8cm (D 1 1/2")
Restriction
Access restriction
Accession number
1982-089-008/008

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