|
Date: |
|
Description: | (Trademark)LORD KELVIN'S SIR Wm THOMSON PATENT No 8383
SIR W.THOMSON'S PATENTS No 15427 (Trademark) KELVIN & JAMES WHITE Ltd GLASGOW
SOLE MAKERS KELVIN & JAMES WHITE Ltd 18 CAMBRIDGE St GLASGOW
Bowl-Brass, black painted lubber line. Weighted at base. Boss in centre of verge glass which serves the double purpose of retaining the card on the pivot and providing a socket for a shadow pin.
Card-Dia. 6" (15.2cm) "Kelvin light dry type". White with black markings, graduated quadrantally in degrees and to 1/4 points. Paper rim attached to centre ring, into which jewelled pivot cap fits, by radiating threads.
Needle-Four parallel needles suspended belwo card.
Pivot-Pivot point in brass stem mounted at base of bowl.
caption: Record Shot - Do not reproduce. | Publisher: | "http://collections.rmg.co.uk/" | Rights holder: | "Royal Museums Greenwich" | Source: | Royal Museums Greenwich | Identifier: | http://collections.rmg.co.uk/collections... | Go to resource |
|
|