- $207.00 Antique Kelvin Hughes 24" Brass Parallel Ruler Nautical Navigation Tool in Box
- $498.67 Military. 1930 US NAVY TECHNICOLOR MOTION PICTURE CORP SURVEY TRANSIT
- $39.00 High-Quality 12-Inch Parallel Ruler Bar 6mm Thickness for Accurate Straight Line
- $59.99 Vintage 1950s Soviet Russia USSR Maritime NAVY Navigator Parallel Rules
- $64.50 Brass Rolling Ruler, U.W.W. Makers Birmingham With Wood Case - 18" Long
- $299.99 Antique Kelvin & Hughes 24" Brass Parallel Ruler Nautical Navigation Tool in Box
- $38.99 Vintage Maclean Parallel Lucite Ruler 21" Perspex
- $19.99 Vtg Mayline 12" Navigation Parallel Ruler Drafting Tool Clear Sheboygen, WI USA
- $120.38 Brass Rolling Ruler, U.W.W. Makers Birmingham, Navigation, Engineering, 18" L
- $99.99 Vintage W. H. Van Gaasbeek for Kelvin White Co. 18” Brass Parallel Rule w/ Case
- $24.99 C-Thru Ruler Company Protector P-7 Plotter Combination 4" x 15"
- $19.99 Vtg Mayline Navigation Parallel Ruler Drafting Tool Sheboygen, WI. USA
- $35.00 Nice VINTAGE ESCO T-Square Black Drafting Drawing Tool Bakelite D10
- $382.50 Rare vintage E.R.WATTS & SON Parallel Rules London year 1943 (WWII).
- $14.99 Vintage Set of Staedtler Mars 57140 A,B,C Drawing Curves
- $29.01 Vtg Mayline 15" Navigation Parallel Ruler Drafting Tool Sheboygen, WI. USA
- $149.00 Paralel ruler in wooden box vintage with wooden handle and brass rollers
- $99.99 Vintage Hinged Parallel Ruler Nautical Brass Made In Great Britain
- $199.99 Antique Kelvin Hughes 24" Brass Parallel Ruler Nautical Navigation Tool in Box
- $15.00 Lucite C-thru Parallel Ruler for Map Navigation aid vintage USA make
- $40.00 Vtg. Mayline Naval Navigation Drafting parallel Ruler Sheboygan, Wis. 18 in.
- $80.00 Vintage Kenyon Model 28-2000 Rolling Parallel 14" Rule With Wood Case