Unspecified / 1942
Catalog of..
Catalog of..
The Smithsonian catalogs Catalog of.. as books in its Aircraft steel records.
WHY IT’S INTERESTING
Trade literature.
A CLOSER LOOK
The Smithsonian lists the object under Aircraft steel and dates it 1942.
Trade literature.
FOLLOW THE EVIDENCE
Smithsonian InstitutionCatalog of..Original explanation based on the sources above. Images carry their own reuse terms.