Vester burglar alarm ball
Vester burglar alarm ball. Two semi-circular globular bells screwed into one another and placed near a window or door so that any movement would activate the alarm bell, rather like a wind-up cooking timer
Picture No
11041591
Media ID
46877531
Size
3482px x 2059px
(1.5MB)
Credit
(c)Maurice Collins Images Collection /Mary Evans Picture Library
Source
Photograph of an original object in the Maurice Collins Collection
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