09-031. 18th CENTURY ENGLISH 6" BRASS SEXTANT BY G. ADAMS
09-033. PRECISION POLAR DISC PLANIMETER BY G. CORADI
09-002. THE GERBER GRAPHANALOGUE MODEL GA-103
09-029. PLANE TABLE CLINOMETER & SLIDE RULE BY TAVERNIER-GRAVET
09-003. MCFARLANE'S CALCULATING CYLINDER
09-037. RARE WHITE ON BLACK OTIS KING PATENT CALCULATOR MODEL K
09-034. WATCH-FACED CIRCULAR SLIDE RULES
09-005. 2 3/8" CHARPENTIER CIRCULAR SLIDE RULE CALCULATOR
09-006. THE "SMALL" POCKET CALCULATOR MODEL I
09-032. HALDEN CALCULEX BY J. HALDEN & CO.
09-009. EARLY FOWLER'S GENERAL PURPOSE CALCULATOR - TYPE H (2CG1)
09-010. FOWLER'S GENERAL PURPOSE CIRCULAR SLIDE RULES
09-012. GILSON CIRCULAR SLIDE RULES
09-038. "THE ENGINEER'S SLIDE RULE" FROM E.M. SCOFIELD
09-013. KEUFFEL & ESSER 20" MERCHANT'S DESK SLIDE RULE N-4096 & CASE
09-036. SLIDE RULE MECHANICAL PENCILS
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09-030. 6x7x12 ARITHMOMETER #1846 by THOMAS DE COLMAR
09-035. EARLY CURTA TYPE I MECHANICAL CALCULATOR No. 4483
09-015. PERFECTION SELF-ADDING RULER BY COLUMBIA NOV. CO.
09-016. SCRIBOLA SMALL PRINTING ADDING MACHINE BY RUTHARDT AND COMPANY
09-017. GEM ADDING MACHINE (5 PLACE)
09-018. LOCKE ADDERS BY C.E. LOCKE Mfg. Co. (Type II)
09-019. EARLY WEBB ADDER (1868 Patent Pattern - #A386)
09-020. WEBB ADDERS (1889 Patent pattern)
09-021. WEBB-PATTERN ADDERS BY J.L. HERRING
09-022. BRITISH CALCULATORS
09-023. CONTO MODELL C 8-DIAL ADDING MACHINE BY CARL LANDOLT
09-024. RAY ADDER IN DESK STAND by THE RAY COMPANY
09-025. THE STANDARD DESK CALCUMETERS BY H.N. MORSE
09-026. ADDOMETER ADDING MACHINES
09-027. DIAL ADDING MACHINES
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