Channel Marine Perspex Bar Parallel Rules Captain Fields Boxed

Capt Fields Improved Parallel Ruler Rule England Vintage

Vintage PIC Slide Rule 1960s In Original Box.

Vintage 1963 London Parallel Rule Ebony & Brass Draughtsman Tool

1950s Linex A1715M Parallel Rule Brass Acrylic 15" Prop Nautical Office Decor

Vintage 50s London Parallel Rule Ebony & Brass Draughtsman Tool 38cm

VINTAGE CAPT. FIELDS IMPROVED PARALLEL RULE LONDON 21"

Vintage - Boxwood - Capt Field's Improved - Parallel Rule - Aston Manda - 1944