What Is It?:

Arthur has us puz­zled...

Sunday Tasmanian - Tassie Living - - NEWS -

Reg­u­lar reader Arthur Sale will have you in a spin with this one

Reg­u­lar reader Arthur Sale of­ten pro­vides help­ful in­for­ma­tion about our What Is It? items, and has sup­plied this week’s mys­tery, which he once owned.

The ear­li­est writ­ten doc­u­men­ta­tion about this com­pli­cated lit­tle de­vice that I could find was dated 1916. The doc­u­ment was a press re­lease which in­cluded a pho­to­graph and a de­scrip­tion of the de­vice’s com­po­nents, its many uses and the prob­lems it solves.

The cir­cu­lar in­stru­ment is marked with thou­sands of minute in­cre­ments and num­bers, which can be re­vealed through the win­dow of the top layer by the turn­ing of its han­dle.

Its work­ings go well over my head, but maybe you are a lit­tle more clued in about de­vices like this.

If you know what this week’s What Is It? is, send your an­swer to tassieliv­ing@news.com.au

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