Vetoli Hyperbolic Rule

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Country of manufacture: Bulgaria,            Date of manufacture: ____
Overall length: 29.4 cm,          Width: 4.1 cm,           Weight: 76.7 gms
Materials: Printed paper scales laminated onto boxwood stators and slide, metal end braces, adjustable
Cursor: 4.2 X 5.8 X 0.9 cms; Aluminum framed plastic lens; lines = Three lines, both front and back sides
Scales: 23, no extensions
Front: 27 cms || LL0, LL00, A [ B, T, ST, S ] D, Th, Sh2, Sh1 || 27 cms
Back: L, LL1, DF [ CF, CIF, CI, C ] D, LL3, LL2
Gauge Marks: [ π, e, 785, //, / ]
Condition: C7 (scuff marks on Sh1 scale, otherwise C4-Minimal signs of use)
Came with: nothing

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