Trigonometer - brass survey instrument
see curator notes and Staff comments
||Handwritton on sticker on arm
7 1/2 x 6 3/4 c 12 in.
Trigonometer consists of two arms, one movable attached to curved piece, and a bubble level. There is a knob on the bottom. "SWNE" scratched into one arm of instrument.
Gwen Bell artifact and book collection