- $29.01 Vtg Mayline 15" Navigation Parallel Ruler Drafting Tool Sheboygen, WI. USA
- $35.00 Nice VINTAGE ESCO T-Square Black Drafting Drawing Tool Bakelite D10
- $19.99 Vtg Mayline 12" Navigation Parallel Ruler Drafting Tool Clear Sheboygen, WI USA
- $19.99 Vtg Mayline Navigation Parallel Ruler Drafting Tool Sheboygen, WI. USA
- $14.00 Davis Instruments 061 Navigation Course Charting Parallel Rule, made in U.S.A.
- $99.99 Vintage W. H. Van Gaasbeek for Kelvin White Co. 18” Brass Parallel Rule w/ Case
- $99.99 Vintage Hinged Parallel Ruler Nautical Brass Made In Great Britain
- $15.00 Lucite C-thru Parallel Ruler for Map Navigation aid vintage USA make