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    $35.99
    Supercool Slide Rule 2 Pack
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    Supercool Slide Rule 2 Pack
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    $25.99
    Vintage Litronix 2260 Slide Rule Calculator With Case And Manual Works Tested. Litronix. Vintage Calculators.
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    Vintage Litronix 2260 Slide Rule Calculator With Case And Manual Works Tested. Litronix. Vintage Calculators.
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    $77.00
    Vintage Soviet Circular Slide Rule K -1 - 1967 USSR Calculator, Retro Math Tool
    Etsy
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    $77.00
    Vintage Soviet Circular Slide Rule K -1 - 1967 USSR Calculator, Retro Math Tool
    Etsy
    $25.00
    Texas Instruments - Electronic Slide-Rule Calculator Ti-30 Working
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    Texas Instruments - Electronic Slide-Rule Calculator Ti-30 Working
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    Vintage: Cost & Selling Price Indicator Calculator Slide Rule Copyright 1935
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    $18.85
    Vintage: Cost & Selling Price Indicator Calculator Slide Rule Copyright 1935
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    $35.00
    1974 Sr-50 Texas Instruments Slide Rule Calculator
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    1974 Sr-50 Texas Instruments Slide Rule Calculator
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    $58.00
    Vintage Texas Instruments Sr-11 Electronic Slide Rule Calculator
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    Vintage Texas Instruments Sr-11 Electronic Slide Rule Calculator
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    $195.00
    SMALL WWII SIEMENS SCHUCKERT ALBERT NESTLER SLIDE RULE CALCULATOR TOOL LEATHER
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    $195.00
    SMALL WWII SIEMENS SCHUCKERT ALBERT NESTLER SLIDE RULE CALCULATOR TOOL LEATHER
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    $12.95
    Vintage 1973 Texas Instruments SR-10 Electronic Slide Rule Calculator. Texas Instruments. Vintage Calculators.
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    $12.95
    Vintage 1973 Texas Instruments SR-10 Electronic Slide Rule Calculator. Texas Instruments. Vintage Calculators.
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    $32.00
    Vintage Arithma Addiator Adding Machine Calculator Slide Rule Metal Stylus. Slide Rules.
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    $32.00
    Vintage Arithma Addiator Adding Machine Calculator Slide Rule Metal Stylus. Slide Rules.
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    $24.00
    Vntg Ohmite Parallel Resistance Calculator & Standard Slide Rule 1970. OHMITE. Slide Rules.
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    $24.00
    Vntg Ohmite Parallel Resistance Calculator & Standard Slide Rule 1970. OHMITE. Slide Rules.
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    $39.00
    Concrete Slide Ruler Lot Of 3 Pieces 200 Yard Volume Calculator Usa
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    $39.00
    Concrete Slide Ruler Lot Of 3 Pieces 200 Yard Volume Calculator Usa
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    $90.00
    Faber Castell Duplex 2 82 Slide Rule Calculator Germany. Slide Rules.
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    $90.00
    Faber Castell Duplex 2 82 Slide Rule Calculator Germany. Slide Rules.
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    $40.00
    Pickett All Metal Slide Rule - Model N902-Es Simplex Trig + Leather
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    $40.00
    Pickett All Metal Slide Rule - Model N902-Es Simplex Trig + Leather
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    $15.25
    VTG Texas Instruments TI-30 Electronic Slide-Rule Calculator Case Manual Works. Texas Instruments. Vintage Calculators.
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    $15.25
    VTG Texas Instruments TI-30 Electronic Slide-Rule Calculator Case Manual Works. Texas Instruments. Vintage Calculators.
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    $159.90
    10 Lot & Improved Supercool Slide Rule Duct Calculator Flex Metal
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    $159.90
    10 Lot & Improved Supercool Slide Rule Duct Calculator Flex Metal
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    $29.90
    E6B Flight Computer Aviation Plotter Circular Slide Rule Used In Aviation Flight Training
    Amazon.com
    $29.90
    E6B Flight Computer Aviation Plotter Circular Slide Rule Used In Aviation Flight Training
    Amazon.com