Hyperbolic Match Output

Number:86a

Maker:REISS (East Germany)

Model:Duplex Model 3227

PHOTO

Scales Front: || LL00, LL01, LL02, LL03, DF || CF, CIF, BI, CI, C || D, LL3, LL2, LL1, LL0 ||

Scales Back: || K, T1, T2, DI, A || Sh1, Sh2, SZ ,C || D, SK, P, ST, L ||

Gauge Marks: π is on A, C, D, DF, CF, CI, DI, and CIF; Q9 and Qo are on the front scale DF, and back D scale; e is on LL2 and LL3

Cursor Front:

Cursor Back:

Construction: 25 cm.; Plastic; Cursor is not framed. Has fixed plastic end brackets.

Date: 1966

Source: ISRM

Information: A variation of the slide rule exists with the "Th" scale - see 86