Old Kodak Slide Question

Discussion in 'Kodak' started by Fred McKenzie, Jan 28, 2005.

  1. I have two old Kodachrome 35mm slides. The back side indicates a "Kodachrome
    Transparency", which might suggest it was processed by Kodak. The front is
    stamped "4350-T1" on both slides.

    The question is, if these were processed by Kodak, can I tell from the stamped
    numbers what the date was? More recent slides have a processing date stamp
    (like JUL 66) and a frame number.

    These slides are from the late 40s, possibly as late as 1950. Based on date
    codes used in the semiconductor industry, one might guess that 4350 indicates
    the 43rd week of 1950. Is there any documentation of Kodak's processing codes
    used in that time frame?

    Fred McKenzie, Jan 28, 2005
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  2. Fred McKenzie

    Lewis Lang Guest

    Subject: Old Kodak Slide Question
    4350 could be April 3rd, 1950. The 43rd batch of Kodachrome developed in 1950
    or emulsion batch number 43 of Kodachrome from that year (did they also imprint
    emulsion batches on slides, nor just boxes?) or none of the above/something
    else. But these are just guesses...

    Perhaps Henry Wilhelm (type his name into Yahoo! to find his site/email) the
    famous archival materials expert (has tested lots of present/older? films)
    knows these obscure old Kodachrome film number details.

    Alternatively you could call Kodak at 1-800-242-2424 and ask for the number for
    their professional or some other division/tech person that would know these
    details. I doubt that the "tech rep" over the phone would know as they might be
    the $7 hired hands just reading about their modern products from some modern
    database that wouldn't include such info.

    In any case, best of luck/success.
    Lewis Lang, Jan 29, 2005
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  3. Fred McKenzie

    westin Guest

    Hmm. The slide mount styles are shown at
    <http://www.trainutz.com/rcMOUNT.shtml>, indicating that your
    "Kodachrome Transparency" would be from the 1950-1955 time period.
    <http://www.historicphotoarchive.com/f2/kodachrome.html> will let you
    narrow it a bit further.

    Kodak's official page on date codes is at
    though this is for the emulsion, not the mount, and unfortunately for
    motion picture film.
    westin, Jan 31, 2005
  4. Westin-

    Thanks. the second site narrows it down to 1949 to 1952, because the slide
    number is stamped rather than printed.

    Examples show an obvious date stamp, as "May 2 1949". Looking closely at the
    number stamped on the slides, I see that the 4 and the 3 are very slightly
    offset vertically, as if they were separated. The 4350 could possibly indicate

    Fred McKenzie, Feb 2, 2005
  5. Fred McKenzie

    me Guest

    May not help but try this:
    Film best,
    me, Feb 2, 2005
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