Antiques (US) 
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$172.50
Antique Kelvin Hughes 24" Brass Parallel Ruler Nautical Navigation Tool in Box
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$49.99
Vintage Kelvin & Hughes Hinged Parallel Nautical Brass Ruler Made Great Britain
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$498.67
Military. 1930 US NAVY TECHNICOLOR MOTION PICTURE CORP SURVEY TRANSIT
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$24.69
High-Quality 12-Inch Parallel Ruler Bar 6mm Thickness for Accurate Straight Line
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$99.99
Vintage W. H. Van Gaasbeek for Kelvin White Co. 18” Brass Parallel Rule w/ Case
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$122.07
Brass Rolling Ruler, U.W.W. Makers Birmingham, Navigation, Engineering, 18" L
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$24.99
VINTAGE ESCO NAVIGATION PARALLEL RULER 18” HUGE Black Drafting Drawing Tool
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$14.99
Linex A 1715 M Vintage Maritime Marine Parallel Ruler Acrylic Made In Denmark
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$299.99
Antique Kelvin & Hughes 24" Brass Parallel Ruler Nautical Navigation Tool in Box
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$38.99
Vintage Maclean Parallel Lucite Ruler 21" Perspex
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$29.01
Vtg Mayline 15" Navigation Parallel Ruler Drafting Tool Sheboygen, WI. USA
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$15.00
Lucite C-thru Parallel Ruler for Map Navigation aid vintage USA make
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$99.99
Vintage Hinged Parallel Ruler Nautical Brass Made In Great Britain
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$14.99
Vintage Set of Staedtler Mars 57140 A,B,C Drawing Curves
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$39.00
Vintage ESCO Parallel Ruler for Navigation 15" Original Box
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$149.00
Paralel ruler in wooden box vintage with wooden handle and brass rollers
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$425.00
Rare vintage E.R.WATTS & SON Parallel Rules London year 1943 (WWII).
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$40.00
Vtg. Mayline Naval Navigation Drafting parallel Ruler Sheboygan, Wis. 18 in.
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$24.99
C-Thru Ruler Company Protector P-7 Plotter Combination 4" x 15"
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$80.00
Vintage Kenyon Model 28-2000 Rolling Parallel 14" Rule With Wood Case
