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BOA Honorary Membership Certificate
ARCHIVAL ITEMS
certificate
British Optical Association
Europe: U; Europe: United Kingdom, England, London
1933-12-06
paper
1999.746
ARCHIVAL ITEMS
certificate
British Optical Association
Europe: U; Europe: United Kingdom, England, London
1933-12-06
paper
BOA Honorary Membership Certificate made out to Dr. H. Pistor of Jena, Germany.
1999.746