Collection Guides
Caltech Images Collection
Scientific Instrument Photographs
open the Proportional dividers collection guide metadata record
Proportional dividers
1930
Title
Proportional dividers
Collection
Caltech Images Collection
Series
Scientific Instrument Photographs
Identifier
ST-GH-039
Dates
1930
Extents
1 photographs
Abstract
Lietz calibrated proportional dividers.
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