Hyperbolic Match Output

Number:107b

Maker: Vetoli (Bulgaria)

Model: Hyperbolic Rule

Scales Front: || K, L, DIF, DF || B, S, ST, T, CI, C || D, DI, TH, SH1, SH2

Scales Back: || LL1, LL2, LL3, LL4, DF/M || CF, CIF, R1, R2, CI, C || D, LL/1, LL/2, LL/3, LL/4

Gauge Marks: π, e, 785, R

Cursor Front:

Cursor Back:

Construction:

Date:

Source: Steve Seale

Information: Printed paper scales laminated onto boxwood stators and slide, metal end braces, adjustable.