F.231 Data Sheet MJS-p-0267

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K&E, N4133, 1944

Serial Number or Date Stamp: 414

Country: USA

Primary construction material: wd

Case included?: yes + box

General Description: Specialty linear electro slide rule

Length of 1 decade = 8 in, and overall scale length = 8 in. The largest physical dimension is 8 in.

Front Scales: in /| A [ B CI C ] D K || B&SGauge < CurrRatings >

Back Scales: cm [ S L T ]

Notes: Roylance Electrical Slide Rule, mahogany; 3-hairline cursor; scale set #3; original case and box

References: JOS6.2p39 (1997); https://www.mccoys-kecatalogs.com/KECollection/4133/ke4133familyrules.htm

Date Acquired: 07/20/2022