ke keuffel esser slide rule lot 4081 3 4053 3 and n4041

ke keuffel esser slide rule lot 4081 3 4053 3 and n4041

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Vintage Keuffel & Esser KE SLIDE RULE #4055 Early 20th Century

Vintage Keuffel & Esser KE SLIDE RULE #4055 Early 20th Century

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Keuffel & Esser Co. Slide Rule KE 12" Copyright 1947 #68 1256 W/ Case & Box USA

Keuffel & Esser Co. Slide Rule KE 12" Copyright 1947 #68 1256 W/ Case & Box USA

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Keuffel Esser KE K+E Paragon 1631P 1621p Engineer Triangular 12" Scale Sleeves

Keuffel Esser KE K+E Paragon 1631P 1621p Engineer Triangular 12" Scale Sleeves

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Vintage KEUFFEL & ESSER KE Surveying Scope with matching Leather Case

Vintage KEUFFEL & ESSER KE Surveying Scope with matching Leather Case

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Vintage Keuffel & Esser KE 4081-3 Log Log Duplex Decitrig Slide Rule

Vintage Keuffel & Esser KE 4081-3 Log Log Duplex Decitrig Slide Rule

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RH KE PARAGON RIGH HAND Mechanical Drafting Machine More + 2 SCALES +++

RH KE PARAGON RIGH HAND Mechanical Drafting Machine More + 2 SCALES +++

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Vintage NOS Keuffel&Esser KE Wyteface 90 Replacement blade 1/2” x 6’

Vintage NOS Keuffel&Esser KE Wyteface 90 Replacement blade 1/2” x 6’

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Lot of 2 Slide Rules: Keuffel & Esser KE K-12 Prep &Case, Frederick Post No 1446

Lot of 2 Slide Rules: Keuffel & Esser KE K-12 Prep &Case, Frederick Post No 1446

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Vintage Keuffel & Esser KE SLIDE RULE #4055 w/Hard Case Early 20th Century

Vintage Keuffel & Esser KE SLIDE RULE #4055 w/Hard Case Early 20th Century

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Vintage 1960s Keuffel & Esser KE 56 3216 Paragon Drafting Engineer Scale Ruler

Vintage 1960s Keuffel & Esser KE 56 3216 Paragon Drafting Engineer Scale Ruler

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