Watts Theodolite Manual - Hilger

The Hilger & Watts Microptic theodolite is a precision optical-mechanical instrument, featuring a transit telescope and internal glass circles for measuring vertical and horizontal angles. Key operations include precise leveling, using optical plummets for centering, and taking both face-left and face-right measurements to eliminate instrumental errors. You can find a PDF of the manual at wakanokumot.weebly.com . Microptic transit theodolite, 1954

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Companies that sell refurbished vintage surveying equipment (e.g., in the UK, Timbeter in Europe) sometimes have a library of original manuals. They may sell a photocopy for a small fee ($15–$30). The Hilger & Watts Microptic theodolite is a