10 Responses

  1. Has to be old steel pully wheels

    • Good guess, but no!

  2. Ok try steamed wooden wheels

    • Close, but the steam is not necessarily in contact with the object…

  3. I think that rail way line come in that width…. am I close…??

    • Not so close, sorry. Michael was right next to the mark, and may have been thinking the right answer, except for the steam part….

  4. I’m thinking paddle boats from the Murray River – maybe the paddle wheels on the sides of paddle steamers were that wide?

    • Getting colder!

      • Wagon wheel?

        • Got it! 4′ , made with 1890s technology (to the most part!)

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