Calculimetre

Retro Calculator: Vintage Charpentier Calculimetre Multidisc Circular Slide Rule

Rare Calculimetre G. Charpentier Brevete S. G. D. G Circa 1882 Circular Slide Rule

Rrrrare Circular Slide Rule Calculimetre Charpentier Type 2 With Leather Pouch

Vintage Calculimetre Slide Rule Keuffel And Esser Surveying Equipment

Rare Calculimetre D Artilleur Modèle 1888 Sgdg France

Antique Calculimetre By G Charpentier Brevete Circular Slide Rule Ruler C1890