Pickett N-16-ES Electronic Dual Base Speed Rule

Country of manufacture: USA,            Date of manufacture: ____
Overall length: 30.9 cm,          Width: 5.2 cm,           Weight: 129.1 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: 33, some specialized
Front: SH1, SH2, TH, DF [ CF, L, S, ST, T, CI, C ] D, LL3, LL2, LL1, Ln
Back: θ, θ, db, D or Q, XL, ZX or XC [ C or L, F, λ, ω, τ, τR' or X'C, Cr ] Lr, db, Cos θ, T'C or C'
Gauge Marks: [ π, e, //, /, 785, R, 1/√2, √2 ]
Condition: C2-C3 (Mint to very minimal signs of use)
Came with: Original red-brown leather case with plastic insert