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Plate, Vienna, 18th century; engraving probably 19th century.
HRM21B30_471

Plate, Vienna, 18th century; engraving probably 19...

Plumb Line and Board, 1939. Creator: Walter Praefke.
HRM21B14_352

Plumb Line and Board, 1939. Creator: Walter Praefk...

Telescope from Selenographia, 1647 (1956). Artist: Unknown
HRM19C53_033

Telescope from Selenographia, 1647 (1956). Artist:...

Surveying, 1551. Artist: Unknown
HRM19B64_310

Surveying, 1551. Artist: Unknown

Johannes Hevelius, German astronomer, 1647. Artist: Unknown
HRM19B64_431

Johannes Hevelius, German astronomer, 1647. Artist...

Surveyors using quadrants to measure the height of a tower, c1617-c1619. Artist: Robert Fludd
HRM19B65_131

Surveyors using quadrants to measure the height of...

Using a quadrant with a plumb bob to calculate the height of a tower by triangulation, 1551. Artist: Unknown
HRM19B65_491

Using a quadrant with a plumb bob to calculate the...

Surveying, early 17th century. Artist: Unknown
HRM19B66_210

Surveying, early 17th century. Artist: Unknown