pneumatic clock, secondary clock driven by primary clock

The Smithsonian catalogs pneumatic clock, secondary clock driven by primary clock as pneumatic clock, slave clock driven by master clock in its African American records.

WHY IT’S INTERESTING

Currently not on view

SERENDIPITYA little unexpected

FamiliarWeird

A CLOSER LOOK

The Smithsonian lists the object under African American and dates it ca 1885.

Currently not on view

FOLLOW THE EVIDENCE

Smithsonian Institutionpneumatic clock, secondary clock driven by primary clock

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