Finder, Direction
- Object Name:
- Finder, Direction
- Object ID:
- 1956.005 b
- Creator:
- Hart, William
- Place of Origin:
- Portsmouth, NH
- Date:
- 1763
- Description:
- Goniometer (angle measure, surveying instrument). Made by William Hart (1734-1812), Portsmouth, NH, 1763. Rectangular wood block. Trough compass under glass, inset in face on which 180-degree graduated scale is incised. Beneath center of scale, incised in tiny letters: "Wm Hart Fecit / 1763". One-piece brass hairline sight, 8" long, posts 3.6" high, pivoted beneath scale on slender brass bolt with butterfly nut (1956.005b.1). Incised along one side of block is a quarter-inch scale 1 to 25, reading from right to left. Base of block bracketed and bored to fit on tripod ball. Folded leather case with inside pocket, 8.75" x 6", sewn together on two sides, one end open (1956.005b.2).
- Material:
- Wood
Metal
Brass
Leather
Glass - Dimensions:
- H-7.875 W-4.25 L-0.875 inches
- Credit Line:
- New Hampshire Historical Society Purchase
- People:
- Hart, William (1734-1812)
- Subjects:
- Goniometer, Surveying equipment, Surveying instruments, Surveying
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