- Museum number
Nocturnal; brass; square; folding cursor; reverse: incomplete lunar/solar time converter with circular scale; rotating disc with index.
- Production date
Length: 90 millimetres (square)
- Curator's comments
- Ward 1981
The top of the square is at 1 October. On the reverse, an incomplete lunar/solar time converter, with circular scale I-XII, I-XII anticlockwise; above this, a rotating disc with index is inscribed 1-29½ clockwise. The engraving lacks refinement.
- Not on display
Latest: 2 (Nov 2016)
5 (Dec 1995) Verdigris on side of nocturnal.
- Acquisition date
- Acquisition notes
- The Ilbert Collection of clocks, prints and other related material was destined to be sold at Christie's auction house on 6th-7th November 1958. As a result of the generous donation of funds by Gilbert Edgar CBE the sale was cancelled and the material purchased privately from the beneficiaries of the Ilbert Estate.
Ilbert's watches were then acquired with further funds from Gilbert Edgar CBE, public donations and government funds. These were then registered in the series 1958,1201.
- Britain, Europe and Prehistory
- Registration number
- Additional IDs
Previous owner/ex-collection number: CAI.2437 (Ilbert Collection)
Previous owner/ex-collection number: N342 (Ilbert Ledger)