draftsman's right triangle
Date: circa 1855
Inventory Number: 5459d
Classification: Triangle
Subject:
Maker: American ?
User: Andrew Nichols (1837 - 1921)
Cultural Region:
City of Use:
Dimensions:
0.7 x 20 x 14.9 cm (1/4 x 7 7/8 x 5 7/8 in.)
Material:
pine,
Description:
Pine right triangle with one large hole and one small hole near the right angle.
Signedunsigned
Inscribedhand-written in ink on the instrument: Andrew Nichols / Bowditch High School / Salem
FunctionThe triangle is used for drawing and verifying right angles.
Historical AttributesUsed by Andrew Nichols (1837-1921), civil engineer in Danvers, Massachusetts. He was a descendant of Edward Holyoke (President of Harvard, 1736-1769). This instrument was purchased along with other Holyoke family instruments by David P. Wheatland.
ProvenanceAndrew Nichols (1837-1921), Danvers, Massachusetts, a descendent of Edward Holyoke; passed down through the family to Andrew Nathan Nichols (1890- ), an engineer in Danvers, MA; purchased by David P. Wheatland.
