Hughenden, Buckinghamshire (Accredited Museum)
J. B. Clough
Acorn Bank, Cumbria
Quebec House, Kent (Accredited Museum)
Avebury, Wiltshire
Arlington Court, Devon (Accredited Museum)
Cragside, Northumberland (Accredited Museum)
Smallhythe Place, Kent (Accredited Museum)
Penrhyn Castle, Gwynedd (Accredited Museum)
Coughton Court, Warwickshire
Dunham Massey, Cheshire (Accredited Museum)
Clandon Park, Surrey
Carlyle's House, London (Accredited Museum)
Croft Castle, Herefordshire (Accredited Museum)
Sutton House, London (Accredited Museum)
Dalton Castle, Cumbria
Hans Mayr (fl.1870)
Kingston Lacy Estate, Dorset (Accredited Museum)
Nathaniel Marchant (Sussex 1739 – London 1816)
Knole, Kent (Accredited Museum)
Powis Castle and Garden, Powys (Accredited Museum)
59 Rodney Street, Merseyside (Accredited Museum)
Asprey & Co. Ltd
Dudmaston, Shropshire (Accredited Museum)
Mompesson House, Wiltshire (Accredited Museum)
Ickworth, Suffolk (Accredited Museum)
D. Griffiths
Ty Mawr Wybrnant, Conwy (Accredited Museum)
Margolis Bros.
Mount Stewart, County Down (Accredited Museum)
Burrell & Hardman Limited
Dunster Castle, Somerset (Accredited Museum)
D. W. Shears
