Display panel and text for a wooden plaque that was donated as part of the Big Ben centenary in 1959.

Two lamps for the Great Clock dial in the mechanism room of the Elizabeth Tower.

Handle for window within the Elizabeth Tower with black surface coating.

Large screw from the Great Clock.

Section of pipe from the Great Clock/Elizabeth Tower with screw thread at one end and base with screw holes at the other.

Set of 3 lamps used to light up the dial of the Great Clock, all featuring large bulbs and a Philips generator mounted on plywood backplates. Each has contemporary wiring still in place with a thre...

Section of the Great Clock main frame that reads 'To the Queen, from the de...' in gold text on a black background. Remnant of the original frame that was damaged during the disaster of 1976.

Section of Great Clock main frame that reads '...signs of Edmund Beckett Denison Q.C.' in gold text on a black background. Remnant of the original frame that was damaged during the disaster of 1976.

Print of a sketch entitled 'Big Ben and the Clock Tower, Westminster Palace', depicting a male figure sat on the inner sill of the clock face facing the mechanism. In a black frame.

Text description for the Double Three Legged Gravity Escapement within wooden frame with gold inner edge.

Descriptive panel and drawing of 'The Double Three Legged Gravity Escapement' within wooden and gold frame.

The Clock Tower, Evening 1990, Drawing by Dennis Creffield. Charcoal drawing.

Clock Tower Palace of Westminster, Photograph by Unknown. Monochrome photographic print.

Chimes locking lever from the Great Clock

Set of two fly fan blades from the Great Clock.The fly fans are air brakes used to regulate the descent of the weights which powers the bells.

Chime barrel spoke from the Great Clock.

Cast iron section of the chime barrel from the Great Clock, in a curved rectangular shape. With an historic label that reads 'Chime barrel'.

Chime hammer lifting lever from the Great Clock

Five sections of wooden pattern wheel from the Great Clock.

Three sections of cast iron chime hammer lifting levers from the Great Clock. All three sections have historic labels that read 'Chime hammer lifiting lever'.

Two sections from the cast iron chiming main wheel of the Great Clock, both with historic labels attached. One label reads 'mainwheel teeth' and the other reads 'Chiming mainwheel'.

Cast iron section of the chime barrel from the Great Clock, in a curved rectangular shape.

Section of the cast iron chime barrel from the Great Clock, in a curved rectangular shape and at least one embedded bolt visible.

Cast iron Great Clock chime hammer linkage, with a nut on one end, and historic lable that reads 'Chime hammer linkage'.

Cast iron strike locking arm from the Great Clock, with an historic label that reads 'Strike locking arm'.

Wooden wheel washer pattern for the Great Clock. The interior part is painted in red and the exterior ring is painted in black, while the reverse is painted enirely in black.

Wooden frame divider pattern for the Great Clock with a painted black finish and yellow details. It has a central diamond shaped plaque with 'MJA' inscribed and white writing that reads 'Great Cloc...

Wooden frame end from the Great Clock with painted black finish and a central diamond shaped plaque inscribed with 'MJA'. The object is painted in black, with minor red and yellow parts, with white...

Wooden second wheel pattern for the Great Clock. The wheel is painted yellow, black and red, and has a central diamond shaped plaque reading 'MJA'. There is black writing on the central yellow part...

Wooden frame end pattern for the Great Clock, in a rectangular box shape. The object is painted in black with white writing that reads 'Great Clock Frame End 778'. One of the new patterns that was ...

Set of two circular pole brackets from the Great Clock. The objects have purpose made recesses and three fixing holes attached to the base.

Two metal cable guides for Great Clock link cable, made up of two metal plates and four fixing holes.

Two electrical lights for the Great Clock clockface mounted on white metal plates. The object retains its glass 'Philips' bulb and product information label.

Rectangular main frame pattern for the Great Clock. Painted black with yellow accents, writing in white. On the reverse is inscribed 'This clock was made in the year of our lord 1854 by Frederick D...

12 wooden pieces (and some further smaller splinters of wood) from one of the pattern wheels of the Great Clock. Likely pine.

Display created to demonstrate the Gravity Escapement of the Great Clock. The pendulum for the display is AFC 005026, and the display case is AFC 004957.

The Clock Tower New Palace Yard, Print by Unknown and Illustrated London News. Colour lithograph.

Old Clock Tower, Old Palace Yard., Drawing by Claude de Jongh and Wenceslaus Hollar. Pen and ink drawing.

Panoramic View of London from the Clock Tower, Drawing by Paul Osborne. Watercolour.

View of clock tower and Speaker's residence 1857 ?, Print by Unknown and Illustrated London News. Monochrome line engraving.

Illustrated London News Supplement - Clock Tower, Print by Unknown and Illustrated London News.

Light on the Clock Tower The Illustrated London News, Print by Illustrated London News.

Wooden Watchman's key box with small hinged door and a metal key lock box held within it. The metal key lock box has pressed lettering on the front that reads 'Newman Patrol Station, Pat D Nov 6 1...

Section of chime-locking arbor form the Great Clock.

Architectural model of the Clock Tower made of oak with painted exterior on two sides. Other two sides are incomplete, presumably these were not visible when displayed.

Ceramic rectangular plaque commemorating Benjamin Hall on the 150th Anniversary of Big Ben. The plaque has a central image of Hall with two plaques featuring an inscription in both Englsih and Wels...

Plaque commemorating the 150th anniversary of the casting of the bell/Big Ben, originally on display within the Elizabeth Tower. The plaque is rectangular with curved corners and dark blue in colou...

Sections of stone from the Elizabeth Tower, all of which have drill marks present.