Unspecified / 1938
Mechanical clocks
Mechanical clocks
The Smithsonian catalogs Mechanical clocks as books in its Clocks and watches records.
WHY IT’S INTERESTING
Trade literature.
A CLOSER LOOK
The Smithsonian lists the object under Clocks and watches and dates it 1938.
Trade literature.
FOLLOW THE EVIDENCE
Smithsonian InstitutionMechanical clocksOriginal explanation based on the sources above. Images carry their own reuse terms.