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Item#TypeModel No.Match No.Variant No.Model NameMakerCountryProduction or Serial No.MaterialScale LengthDateCondition
KEU604Linear
Mystery
Unknown
n/a
Mystery MannheimKeuffel & EsserUSA
0
Engine divided celluloid laminated mahogany
"10"
1903?
C7

Notes: Strange prototype/test piece. Frame is mahogany with a boxwood strip for the slide well and is similar to that found on 1746 model of 1899 with a square notch on right side. Slide is mahogany. Celluloid on sides and scale surfaces with engine divided scales. Slide well has cm extension scale printed on the boxwood surface. Slide is very loose. Indicator is frameless glass with plastic guides (circa 1915). Conversion table is a NBS Circular 47 style dating to 1952 and looks to be added after original was removed.

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