$9.99

ENGINEER DIRECTIONAL COMPASS FROM JAPAN

$87.96

Vintage Casella (London) 5ft Rule / Ruler - As Photo

$34.99

Vintage Hartford Ceramic Insulator Brown Electrical H A109 Beehive Porcelain

$62.78

Gemma Frisius 1682 Cartographer Dokkum Louvain Astronomy Belgium Rare Engraving

$338.3

Negretti & Zambra London Set Of Draughtsman Rulers Boxed Victorian

$37.89

Lodge & Shipley 'Time' Calculator / Computer Chart - 3 1/2" Diameter- As Photo

$80

^ Baldwin Lima Hamilton SR-4 Type N Strain Indicator #C546

$79.38

Sakurai Adjuster Case BS90K Black

$189.45

English Antique Mahogany Cased Cartographer's Instrument Set.

$29.38

Règle à calcul en buis TAVERNIER GRAVET 8 9 41 dans son étui

$81.19

Keuffel & Esser Co N.Y Slide Rule In Leather Case N4053-3 (G.5)

$165

Antique 19th Brass Surveyors Cross Staff / Surveyors Pantometer Instrument