Pickett Model 14 Military Slide Rule

Country of manufacture: USA,            Date of manufacture: ____
Overall length: 30.9 cm,          Width: 5.2 cm,           Weight: 133.1 gms
Materials: all aluminum, adjustable
Cursor: 2.9 X 6.4 X 0.8 cms; all plastic, slightly magnifying, adjustable; lines = single line front and back
Scales: 26, some specialized
Front: LL1 (+.00D/-.00D), LL2 (+.0D/-.0D), A [ B, T, ST, S, K, C ] D , LL3 (+.D/-.D), LL4 (+D./-D.)
Back: Opposite Angle (DEG/MILS) [ Apex Angle (MILS/DEG), TAN, SIN-TAN, SIN, BASE C ] Distance D, A
Gauge Marks: [ π, e, //, /, 785, R ]
Condition: C3-C4 (Very minimal to minimal signs of use)
Came with: Original leather case (snap closure broken) with plastic insert, and imprint "U.S."