Name	Keuffel & Esser 4053 - 3S Polyphase Mannheim Adjustable,
Front Scales	10inch / A = B CI C = D K \ 25cm
Back Scales	= S L T =
Type of Rule	slide rule
Material	Engine divided celluloid laminated mahogany, with molded plastic back
Dimension (mm)
Area of Use	generic
Origin of Rule	Michael O'Leary
Match Number	4118
Comment
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