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jamison_mystery
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by Philip Jamison (030116 MMDigest)
Pictures attached. Thanks! Philip Jamison
Ed. note: The cardboard roll has a chain of large round holes, about 7 mm (.27") diameter, for a sprocket drive running down the middle, reminiscent of a sprocket drive music box disc. The note holes, however, are made with a square punch, just like book music. I measured the channel distances from the photo and estimate that the instrument played 61 to 65 notes. The note spacing is about 3.7 mm, or 6.85 notes per inch.
16 January 2003 |
I
have three "mystery rolls" I'd like to identify. They are of rather
heavy card and are 10-1/4" (26 cm) wide, and look like they play
a mechanical piano or organ with a center drive sprocket.
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