Antiques (US) 
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$29.95
Vintage C-Thru Ruler Co, Conn, USA Black Bakelite Parallel Rule Ruler 12" #CL69
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$29.01
Vtg Mayline 15" Navigation Parallel Ruler Drafting Tool Sheboygen, WI. USA
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$24.99
VINTAGE ESCO NAVIGATION PARALLEL RULER 18” HUGE Black Drafting Drawing Tool
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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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$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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$89.99
T.S. and J.D. Negus Antique Brass Maritime Navigational Parallel Rule Red Felt
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$18.99
Vintage C-Thru Ruler Co. Conn. USA clear Parallel Rule 12" Drafting Marine #51
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$69.95
Antique Brass Parallel Rule Nautical Navigation Instrument T. S. & J. D. Negus
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$39.00
Vintage ESCO Parallel Ruler for Navigation 15" Original Box
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$12.99
Maritime Navigation PARAGLIDE Protractor Plotter # 1450 P-71 C-THRU WITH MANUAL
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$29.95
Weems & Plath Marine Navigation Parallel Ruler #141 (Aluminum Arms, 15-Inch)
