F.326 Data Sheet MJS-p-0154

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Richardson, 1776, c.1912

Serial Number or Date Stamp:

Country: USA

Primary construction material: ss

Case included?: box

General Description: Basic linear polyphase slide rule

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

Front Scales: K S A [ B CI C ] D T L

Back Scales:

Notes: 1776 Simplex; nice condition’ Richardson Rule Works

References: https://www.sliderulemuseum.com/Richardson.htm; JOS V28.1 p11

Date Acquired: 09/12/2020