Ridgway's 1543 (Darmstadt)

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Country of manufacture: Denmark,            Date of manufacture: ____
Overall length: 29.5 cm,          Width: 4.7 cm,           Weight: 101.0 gms
Materials: Closed form simplex; all plastic
Cursor: 4.0 X 4.5 X 0.4 cms; all plastic; lines = four lines
Scales: 14, extensions on A, B, C, D
Front: 25 cm 10 in // L, K, A [ B, CI, C ] D, P, S, T
Back: Blank, except for Ridgway's logo, and 'Made in Denmark'
Slide Back: LL1, LL2, LL3
Gauge Marks: [ π, C, e, ρ ]
Condition: C5 (signs of normal use), remnants of sticker on back
Came with: nothing

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