360 protractor with a Vernier + drawing arm in original case
Date: mid 20th Century
Inventory Number: 2014-1-0111
Classification: Protractor
Maker: Theodore Alteneder (fl. 1850 - 1910s)
Manufacturer: Theodore Alteneder & Sons (1910s- 1970s)
Dimensions:
loose object: 4 × 2.7 × 2.3 cm (1 9/16 × 1 1/16 × 7/8 in.)
instrument: 0.7 × 20.5 × 37 cm (1/4 × 8 1/16 × 14 9/16 in.)
box: 3 × 37.8 × 23 cm (1 3/16 × 14 7/8 × 9 1/16 in.)
Description:
One protractor, one storage box
In Collection(s)
Signedon box: T. ALTENEDER / PHILA.
on protactor: T. ALTENEDER / PHILA.
on protactor: T. ALTENEDER / PHILA.
FunctionA protractor is a tool used to measure angles.
ProvenanceLionel Spiro, Brookline, MA; Gift to CHSI, 2014.