Maclagan Crozier, Lichfield Cathedral
The Maclagan Crozier was made by William Dalrymple Maclagan who was Bishop of Lichfield from 1878 to 1891. It was created by Stephen Smith & Son of Covent Garden, London and is made from silver and silver gilt. It is formed of three main elements, the crozier head, central stem and lower stem, each joined together by a screw thread.
The Crozier head had broken away from the central stem as a result of the screw thread being overtightened. This had caused the thin-walled silver tube to fail at its weakest point.
HMCC was appointed by the Treasurer of Lichfield Cathedral to carry out the repair of the Crozier. Initially, the broken threaded end had to be removed from the central stem. A trial repair piece was made using a 3-D printed plastic section to check that the proposed solution would work. A machined brass sleeve was then made and inserted into the threaded end and the silver tube forming the stem. It was decided to secure it using Paraloid B72 adhesive so that it could potentially be reversed in the future. The Crozier was then gently cleaned using Goddard's Silver foam before being returned to the Cathedral.
Hatherop Castle School, Circencester
Hatherop Castle dates originally from the late sixteenth or early seventeenth century. The present building was partially rebuilt by the architect, Henry Clutton, between 1850 - 56 for the Baron de Mauley. The Castle building was leased from the Bazley family at the end of the Second World War by the Owlstone Croft School from Cambridgeshire, becoming the Hatherop Castle School. The buildings were purchased from the family in 1972. The School has continued on the site and today teaches boys and girls from 2.5 to 13 years of age. Within the main building is the Dr Moorhead Room, named after a previous headmistress. This grand room was completely refurbished over the summer of 2014. On the walls of this room were 4 no ornate wall light sconces requiring conservation.
HMCC Limited was contracted by David Carson, the Estates Director, to undertake the careful conservation of the wall lights. The lights were formed from iron armatures with curved copper tubes for the light arms. The wiring for the electric lights were fed through these tubes. Each light was decorated with both wooden and composition mouldings and finished with a thick white coating.
The lights were in a poor condition. Many pieces of the composition decoration were missing, elements were bent out of shape and other areas were cracked. The old electric wiring had failed in at least one light and the old fittings were loose or damaged. Many of the cardboard candle tubes were missing.
The lights were carefully taken apart to allow for replacement of the old wiring with new 3 core cabling. After being rebuild, missing decorative details were replaced in composition after first making moulds from existing details from other areas. These pieces were adhered and pinned to lights before localised filling. The wall lights were finished with oil-based paint before new bulb holders and candle covers were fitted.
Guided Weapons, BACT, Filton
The Bristol Aero Collection Trust was founded with the aim of preserving objects, archives and ephemera that tell the story of aircraft development at Filton, near Bristol. It also collects other heritage items associated with the Bristol businesses on the same site. It has recently been awarded Heritage Lottery Funding to prepare a permanent museum to display the collections, including a Concorde.
HMCC was contracted to prepare a condition report of the guided weapons collection in preparation for their display in the new museum.
The survey was carried out in December 2014. The guided weapons are currently stored in the old Bristol Aeroplane Company's original Brabazon hangar. Weapons inspected included the Bloodhound Mk II missile, Skylark sounding rocket, Chevaline nose section, Sea Dart naval anti-aircraft missile and the tracked Rapier.
The results of the condition survey were written up in a report, providing the Trust with guidance on the conservation treatment required for this important collection before it goes on public display.