Pickett N 902-ES Simplex Trig
- Type: Trig Simplex
- Size: 10 Inches
- Material: Aluminum
- Front: K A [ B T S CI C ] D L
- Back: Instructions
- HvH: 2178
The successor to the 901, adds trig functions and updated instructions.
Three copies in the collection:
Number 1: Low-glare yellow base color. Brown, faux leather sewn paperboard case marked "KREIDER" in permanent marker. Reverse of rule describes basic operations of rule and includes decimal fractions to 1/64.
Number 2: As above, but with grey, sewn paperboard case. Gift of Sara Teller.
Number 3: As above with reddish case. Gift of Ken Osburn.