Details
A collection of surveying instruments,
including a lacquered-brass camera lucida; a planimeter; a pair of beam ends; a copy of Practical Surveying by G.W. Usill; a roller rule; an electrum scale signed Elliott, Holborn, London and engraved Portland and Breakwater; five rules and a pantograph (12)
including a lacquered-brass camera lucida; a planimeter; a pair of beam ends; a copy of Practical Surveying by G.W. Usill; a roller rule; an electrum scale signed Elliott, Holborn, London and engraved Portland and Breakwater; five rules and a pantograph (12)