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Component from photographic zenith tube (PZT)
Circular disc with 3 small screws at 120° intervals around outside, Small mirror in centre. Handwritten label: "PZT chronograph - graticule mounting with prism (experimental)".
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Object Details
| ID: | ZBA0687 |
|---|---|
| Collection: | Astronomical and navigational instruments |
| Type: | component, telescope |
| Display location: | Not on display |
| Creator: | Unknown |
| Date made: | circa 1954 |
| People: | Royal Greenwich Observatory |
| Credit: | Components. National Maritime Museum, Greenwich, London, RGO Collection |
| Measurements: | Overall: 11 mm x 35 mm x 35 mm |