Indicator
Category
Historic Services / Communications
Date
Unknown
Materials
metal & wood
Collection
Hardwick Hall, Derbyshire
NT 1129863
Summary
A historic communication system comprising of a magnito board in an attic room, a 4 x 2 indicator with master and 8no relay switches marked 'to ring on this indicator place switches below on right hand studs to ring in the other maids bed room place switches on left hand. Most interesting of 4no other magnito boards.