The bladed section looks like a set of sheep shearing clippers......perhaps it was used by a 'wandering' sheep shearer.
The 'device' is mounted on a pole placed in the ground.....the two rotating pointers are in fact hour/minute hands......set at the time shearing services are available......hey presto... a mobile sign...that tells you the services offered and his 'opening time' without the use of language.......
