E. Ingraham and Co, Bristol, Conn, movement in a hotel burglar alarm clock with electrical components, spring driven time brass mvt with alarm function. Below dial are eight indicators covering zones or rooms in the alarm system and silent and battery

E. Ingraham and Co, Bristol, Conn, movement in a hotel burglar alarm clock with electrical components, spring driven time brass mvt with alarm function. Below dial are eight indicators covering zones or rooms in the alarm system and silent and battery test features in heavy walnut case with outer alarm bell set on top of case in crest. C. 1920. refinished case, some finish lifting; hands rusty; original 4 1/2" paper over brass pan dial, wiring present. 29"H