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Record Details

Eckhardt's Rolling Parallel Ruler, by Dollond, London, 1770

preview image for Eckhardt's Rolling Parallel Ruler, by Dollond, London, 1770
Object is on display.
Inventory Number: 54316
Object Type:
Persons: Dollond
Date Created: Dated 1770
Place Created: London United Kingdom (England) Europe
Brief Description: Wooden ruler with encased axle and two knurled wheels for rolling action. No indication of distance travelled.
Primary Inscriptions: "A: G: Eckhardt Junr. Invt. 1770 / Dollond Fecit" engraved on brass plate.
Provenance: Transferred from the Radcliffe Observatory. Perhaps belonged to Thomas Hornsby.
Collection Group:
Material(s): Mahogany
brass
Dimensions:
Height Width Depth Diameter Unit
347 47 mm

Narratives

Image with multimedia irn 23304Image with multimedia irn 23306

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