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Thread: Ku DATA REQUEST

  1. #41
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    I could be all wet, but all of the serial number markings on the plastic/bakelite based magazines that I have seen so far appear pantographed to me. Dave, you asked me if a heated element could be used in a pantograph to make the markings. I kind of doubt it. I would think that a heated element would create a raised edge to the characters since melted material would be displaced rather than removing it with a cutter. Just my two cents and probably worth a lot less than that.
    If it is made after 1918...it is a reproduction.

  2. #42
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    FWIW Dr Sturgess writes that the numbers on the bases of Kü magazines are "machine engraved". Regards, Norm

  3. #43
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    Ron/Norm... Thanks for your comments. I think there are some better examples over on the BLACK MAG study. At this point in the studies my thoughts are that there were both.
    dave

  4. #44
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    Ron... Tried to take some closer shots of the mags that I have that I feel very comfortable with at this point in time. I think the first 4 are heat stamped and the last pantographed.
    dave

  5. #45
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    Hi Dave, I don't claim to have any expertise in this area, but I would expect the bottom of a heat stamped number to be black and shiny, like the rest of the base. I guess the only way to test your theory is by prodding one of these bases with a hot soldering iron. Any volunteers? Best regards, Norm
    P.S. Whatever the outcome, I greatly admire your determination to solve this mystery.

  6. #46
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    Quote Originally Posted by norme View Post
    I greatly admire your determination to solve this mystery.
    Ditto! I hate to be a poop, but they still look pantographed to me. Perhaps if I saw them in person I could be convinced otherwise.
    If it is made after 1918...it is a reproduction.

  7. #47
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    Norm/Ron... Thanks for the kind words. Ron.... how about I bring them to the SOS and you can look them over at AAH....
    dave

  8. #48
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    I have always been under the impression that bakelite type material is relatively heat resistent unless subjected to very substantial amounts of heat. I would also think that the heat stamping would produce edges.

  9. #49
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    1768 KU,BYF 41,S/42-W/154,Wood 1768,Unmarked plastic base FXO mag
    Peter

  10. #50
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    Peter.... Thanks...... list updated
    dave

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