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Dudmaston, Shropshire (Accredited Museum)
Knightshayes Court, Devon (Accredited Museum)
Killerton, Devon (Accredited Museum)
Hinton Ampner, Hampshire (Accredited Museum)
Kingston Lacy Estate, Dorset (Accredited Museum)
Scotney Castle, Kent (Accredited Museum)
Snowshill Manor and Garden, Gloucestershire (Accredited Museum)
Gunby Hall Estate, Lincolnshire
Penrhyn Castle, Gwynedd (Accredited Museum)
Hatchlands Park, Surrey (Accredited Museum)
Greenway, Devon (Accredited Museum)
Calke Abbey, Derbyshire (Accredited Museum)
Cornish Engines, Cornwall