Hyperbolic Match Output

Number:19c

Maker:DIETZGEN (USA) Vector Type Log Log

Model:No. 1725N Micromatic (Variation 3)

Scales Front: || LL01, LL02, LL03, DF || CF, CIF, L, CI, C || D, LL3, LL2, LL1||

Scales Back: || Th, K, A || B, T1, T2, ST, S || D, DI, K||

Gauge Marks:Gauge Marks: π is on A, B, CF, and DF; π/4 is on A and B scales; The marks 1°, ' and " are on scale ST.

Cursor Front:

Cursor Back:

Construction: 25 cm; Plastic face on wood ;Cursor has metal frame. Adjustable metal end brackets.

Date:

Source: eBay

Information: Number is 1725N instead of N1725. This "Micromatic Adjustment" slide rule has a special screw for fine adjusting of the alignment. This screw is located on the top scales on the far right end. A screwdriver is stored by a metal latch inside the slide rule case.