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#13
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Posted By: Hankron
One last point, which is mostly unrelated by I think is interesting, is that the primary colors for old (say, Pre-WWII) half-tone color prints was red, yellow and blue. Meaning if you put under a microscope a 1930 color magazine picture ad, you will find that the each primary color dot is either red, yellow or dark blue (additional colors could have been used, like black. But the basic colors are those three). However, in more modern times, printers changed two of the primary colors. So part of determing the age of a color half-tone print is by isolating the tiny dots and determining its color. Many modern counterfeits are identified because the individual dots are the wrong color. |
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