F.313 Data Sheet MJS-p-0223

Ruyi, 1002, 1966

Serial Number or Date Stamp:

Country: CHN Primary construction material: pl Case included?: yes

General Description: Advanced linear log-log trig/decitrig vector/hyperbolic duplex slide rule

Length of 1 decade = 10 in, and overall scale length = 10 in. The largest physical dimension is 10 in.

Front Scales: Ln01 Ln02 Ln03 DF [ CF CIF H2 H3 CI C ] D Ln3 Ln2 Ln1

Back Scales: SH1 SH2 K A [ B S Hp T1 T2 C ] D DI L TH

Notes: Vector rule, 28 scales, nice condition

References: https://osgalleries.org/journal/pdf_files/14.2/V14.2P59.pdf; https://sliderulemuseum.com/China.htm

Date Acquired: 10/20/2021