1851 Great Exhibition: Official Catalogue: Class X.: Gray and Davison
555. GRAY and DAVISON, 9 New Road, Fitzroy Square — Designers and Manufacturers.
A grand church organ of the first class, consisting of three full rows of keys or manuals, from CC 8 feet, to F in alt., and an independent pedal organ of two octaves, and a third, from CCC 16 feet, to E; two bellows. Horizontal, with double feeders of wind of different weights, and six composition pedals for changing the stops, which are 39 in number,-13 in the great organ, 9 in the small, 8 in the choir, 4 in the pedal organ, and 5 for coupling the manuals, and the manuals and pedals together. All the latest improvements are adopted in the construction of this instrument. The case is of novel character, made of solid oak, carved with double impost mouldings, supporting four towers of speaking-pipes, which are decorated: the whole from designs by Mr. Albert Howell, architect.
A small church organ, with one manual, from CC 8 feet, to F in alt., and pedals of two octaves and two notes, in extent from CCC 16 feet, to D, with Boreidon stop. The whole of the manuals are enclosed in a Venetian swell, and there are two pedals for changing the stops. The case is of Gothic design, made of deal stained and varnished.
Patent improved church barrel-organ, playing any number of tunes, without the necessity of shifting the barrels in and out of the instrument. The change from one tune to another, on whatever barrel, is made in the simplest manner possible, and an index always shows the name of the tune about to be played.