Manufacturer: Keuffel & Esser
Model: 4053-3, Pat. June 5, 1900
Serial # 13226
Construction: Mahogany, Mannheim, 10"
Scales: Front: A, B, CI, C, D, K
Back: S, LI(not labeled), T, inch and centimeter rules, conversion tables
Last Updated on June 27, 1999 by John Current
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