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Item#TypeModel No.Match No.Variant No.Model NameMakerCountryProduction or Serial No.MaterialScale LengthDateCondition
KEU495Linear
4070
4182
2
DuplexKeuffel & EsserUSA
none
Engine divided celluloid laminated mahogany
"10"
1906
C6

Notes: Frameless glass indicator with plastic guides and 2 cursor lines (replacement for brass metal indicator). Scales labelled on right end of slide. KEUFFEL ESSER Co NEW-YORK moved to front face; PAT.OCT.6.1891 moved to back face. Pi (?) gauge mark added. C-shaped brackets.

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