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Description: | 'I. VAN DER BILDT FRANEKER'.
This is a portable Gregorian (reflector telescope) signed I. van der Bildt.
Telescope: The barrel is made of brass. It has adjustable inclination and rotary movement (or altitude and azimuth movment). The screw-on eyepiece has a shaped brass cap. A wooden cap with a brass knob plugs on to the object end. Within the barrel are primary and secondary specula (mirrors). There is a screw thread for focusing which is done by moving the secondary mirror by use of the rod attatched to the barrel. The telescope is in good condition.
Stand: The telescope is mounted on a brass pillar and stand with three collapsable claw legs.
Box and accessories: There is no box.
AUDIT - object needs to be marked with its NAV number. One unnumbered part.
caption: Portable reflector telescope | Publisher: | "http://collections.rmg.co.uk/" | Rights holder: | "Royal Museums Greenwich" | Subjects: | Gregorian telescope Domestic astronomical telescopes Azimuth Reflecting telescope reflecting telescopes | Source: | Royal Museums Greenwich | Identifier: | http://collections.rmg.co.uk/collections... | Go to resource |
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