- $283.28 CAD Antique Kelvin Hughes 24" Brass Parallel Ruler Nautical Navigation Tool in Box
- $682.43 CAD Military. 1930 US NAVY TECHNICOLOR MOTION PICTURE CORP SURVEY TRANSIT
- $52.83 CAD High-Quality 12-Inch Parallel Ruler Bar 6mm Thickness for Accurate Straight Line
- $523.45 CAD Rare vintage E.R.WATTS & SON Parallel Rules London year 1943 (WWII).
- $165.00 CAD Brass Rolling Ruler, U.W.W. Makers Birmingham, Navigation, Engineering, 18" L
- $88.27 CAD Brass Rolling Ruler, U.W.W. Makers Birmingham With Wood Case - 18" Long
- $27.36 CAD Vtg Mayline 12" Navigation Parallel Ruler Drafting Tool Clear Sheboygen, WI USA
- $34.20 CAD C-Thru Ruler Company Protector P-7 Plotter Combination 4" x 15"
- $53.36 CAD Vintage Maclean Parallel Lucite Ruler 21" Perspex
- $410.54 CAD Antique Kelvin & Hughes 24" Brass Parallel Ruler Nautical Navigation Tool in Box
- $203.91 CAD Paralel ruler in wooden box vintage with wooden handle and brass rollers
- $39.70 CAD Vtg Mayline 15" Navigation Parallel Ruler Drafting Tool Sheboygen, WI. USA
- $136.84 CAD Vintage W. H. Van Gaasbeek for Kelvin White Co. 18” Brass Parallel Rule w/ Case
- $53.37 CAD High-Quality 12-Inch Parallel Ruler Bar 6mm Thickness for Accurate Straight Line
- $82.10 CAD Vintage 1950s Soviet Russia USSR Maritime NAVY Navigator Parallel Rules
- $20.51 CAD Vintage Set of Staedtler Mars 57140 A,B,C Drawing Curves
- $136.84 CAD Vintage Hinged Parallel Ruler Nautical Brass Made In Great Britain
- $27.36 CAD Vtg Mayline Navigation Parallel Ruler Drafting Tool Sheboygen, WI. USA
- $47.90 CAD Nice VINTAGE ESCO T-Square Black Drafting Drawing Tool Bakelite D10
- $273.69 CAD Antique Kelvin Hughes 24" Brass Parallel Ruler Nautical Navigation Tool in Box
- $20.53 CAD Lucite C-thru Parallel Ruler for Map Navigation aid vintage USA make
- $54.74 CAD Vtg. Mayline Naval Navigation Drafting parallel Ruler Sheboygan, Wis. 18 in.
- $109.48 CAD Vintage Kenyon Model 28-2000 Rolling Parallel 14" Rule With Wood Case