What Is It?:
Arthur has us puzzled...
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 firstname.lastname@example.org