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instrument, balloonist's
Brass cylinder with 5 x 1" (12.7 x 2.5cm) aperture cut in its side. A magnifier dia. 1" (2.5cm) is mounted above the aperture on two parallel brass rods which allow it to be moved over the length of the aperture. Inside the cylinder is a glazed map of England and East coast of Ireland, which can be rotated by a brass milled knob at base and which is viewed through the aperture and magnifier.
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Object Details
| ID: | NAV0959 |
|---|---|
| Type: | instrument, balloonist's |
| Display location: | Not on display |
| Creator: | W. F. Stanley & Co Ltd |
| Date made: | circa 1900 |
| Credit: | National Maritime Museum, Greenwich, London |
| Measurements: | Overall: 47 mm x 185 mm x 75 mm |
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