Pickett Model 1080-T (35350 Pocket Calculator for Orifice Meters, for The Refinery Supply Company)

Country of manufacture: USA,            Date of manufacture: ____
Overall length: 30.2 cm,          Width: 3.2 cm,           Weight: 77.5 gms
Materials: all metal, metal end braces, adjustable
Cursor: 2.4 X 4.3 X 0.6 cms; all plastic, adjustable; lines = single hairline, front and back
Scales: 9, some specialized (scale labels on front are not standard labels, but specialized)
Front: A (Coefficient) [ B (Cubic Ft.), C (Diff.) ] D (Press. Vac.)
Back: A [ B, C, CI ] D
Gauge Marks: [ π, 785, R ]
Condition: C3-C4 (Very Minimal to Minimal signs of use; some discoloration)
Came with: Original leather case with snap closure