K&E 4160 Chemist's Rule 284569

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Country of manufacture: USA,            Date of manufacture: ____, Serial No: 284569
Overall length: 31.9 cm,          Width: 4.1 cm,           Weight: 100.9 gms
Materials: Celluloid laminate over mahogany, Metal end braces, adjustable
Cursor: 3.0 X 5.1 X 1.1 cms; plastic runners, unframed glass lens, adjustable; lines = single hairline, front and back
Scales: 8, no extensions, specialized scales
Front: Sought (Acid/Base/Salt) [ Given, C ] D
Back: Sought (Oxide/Element) [ Given, CI ] D
Gauge Marks: [      ]
Condition: C5 (Normal signs of use; chipped cursor lens replaced on front side)
Came with: nothing

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