What is it Optical device ?

Discussion in 'Antique Discussion' started by Brubaker50, May 14, 2018.

  1. Brubaker50

    Brubaker50 Well-Known Member

    Came across this little device made by J Clarke Belfast havent a clue was hoping some of you nice people could tell me. P5140296.JPG P5140297.JPG P5140299.JPG
     
    Brubaker50, May 14, 2018
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  2. Hollyblue

    Hollyblue Well-Known Member

    It looks like it may be a retinoscope.
     
    Hollyblue, May 14, 2018
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  3. Brubaker50

    Brubaker50 Well-Known Member

    Almost it's an Opthalmascope for testing eyes thank you for the clue much appreciated.
     
    Brubaker50, May 14, 2018
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  4. pewter2

    pewter2 Well-Known Member

    Hello Brubaker50...the spike 2prong item is a draughting/ drafting ink pen...should have a bakelite or plastic sleeve over spike end, a shorter one would have substituted as a second attachment for the pencil side of a compass...regards ..pewter2
     
    pewter2, May 14, 2018
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  5. Bronwen

    Bronwen Well-Known Member

    My first thought too is that although it works optically, its use is more like that of a pantograph, a way of projecting an image onto paper so it can be outlined & drawn.
     
    Bronwen, May 14, 2018
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