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Is the UV Light test the ultimate test?

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    #61
    Originally posted by johnnhoj49
    I have always used a blacklight for initial tests. on paper it is usually 100% correct
    Paper can´t be 100% correct, sorry. It all depends on how the paper was manufactured (what kind of chemicals used and brightness one wants) and it is possible even today to make, obtain paper that doesn´t react to Blacklight.
    Regards
    Hans N

    Don´t throw away your fake WB´s! Get in touch with me.
    I collect them for reference purposes for the benefit of the hobby (for the right "fake" price of course).

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      #62
      What IS true about paper is that optical brighteners were NOT used until after WWII. If it's paper, and it glows (reacts to blacklight), it is post-war. The reverse is not necessarily true, however: Some postwar papers are made without optical brighteners, and certain chemical baths can mask or reduce glow. So just because it doesn't glow, doesn't mean it's real.

      Incidentally, a friend of mine recently told me about a product called "deer hunting soap." I don't hunt, so I don't know the truth of this, but he says deer can detect phosphate laundry glow as well, and that Walmart sells a soap which will take the glow out of hunters' clothes. I googled this and found nothing. Is this just an urban legend?

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        #63
        Originally posted by Chris
        What IS true about paper is that optical brighteners were NOT used until after WWII. If it's paper, and it glows (reacts to blacklight), it is post-war. The reverse is not necessarily true, however: Some postwar papers are made without optical brighteners, and certain chemical baths can mask or reduce glow. So just because it doesn't glow, doesn't mean it's real.

        Incidentally, a friend of mine recently told me about a product called "deer hunting soap." I don't hunt, so I don't know the truth of this, but he says deer can detect phosphate laundry glow as well, and that Walmart sells a soap which will take the glow out of hunters' clothes. I googled this and found nothing. Is this just an urban legend?
        I just caught glow over a stack of postcards I have from my exs Aunt. These are in no way postwar.
        Iam Uncle Sam
        That’s who Iam
        Been hiding out
        In a rock and roll band

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          #64
          Originally posted by münster View Post
          I just caught glow over a stack of postcards I have from my exs Aunt. These are in no way postwar.
          But was it the paper that glowed or the ink used on the paper???

          Best regards,
          Martin

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            #65
            both,Ive been messing around with it a bit all weekend..thats called boredom
            Iam Uncle Sam
            That’s who Iam
            Been hiding out
            In a rock and roll band

            Comment


              #66
              could anybody explain to me the burn test?
              Filip

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                #67
                One more question
                If an item does not glow under uv light can you be 100% sure that it is original (pre 1945)?
                Filip

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                  #68
                  In answer to your first question-

                  The burn test is ususally done on a piece of thread from the item.

                  If the thread balls up (with no ash) then it's a syntetic material, which in most instances indicates a post war made item.

                  If the thread burns clean (just turns to ash) it is a non-syntetic material & then has a greater chance of being period.

                  In answer to your second question-

                  No. I've seen fantasy items which didn't glow.

                  I feel these 2 technics should be used as part of an assortment of things you can use to determine an items originallity. The least of which is common sense.

                  Hope this helps.
                  Regards,
                  Chris

                  Always interested in buying Ribbon Bars or anything Ribbon Bar related!!

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                    #69
                    Thanks

                    Comment


                      #70
                      Hi File21,
                      Just to add onto Chris,s comments,
                      Unlike cotton which should burn clean and leave a whisper of gray ash, animal fibres(Such as Wool) will ball up with no ash but the ball should crush easily and leave residue similar to a match head.It should also smell similar to burning hair
                      Modern synthetics such as polyester will ball up but leave an uncrushable black bead.The odor is similar to burning plastic.It will also emit a black smoke.

                      regards Keifer

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                        #71
                        Originally posted by File21 View Post
                        One more question
                        If an item does not glow under uv light can you be 100% sure that it is original (pre 1945)?
                        Filip
                        Hi Filip, no. Unfortunately, you cannot be certain of that...there is no definite answer one way or the other using the blacklight test, but rather (and as has been explained by many in this thread) it will serve to narrow down the probabilities one way or the other, but the blacklight test can never be taken as being conclusive....Cheers, Torsten.

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                          #72
                          Thanks for the info

                          Filip

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                            #73
                            I heard something:

                            Some people wash their ribbons. Because of the cleaning stuff it can light up with UV.

                            Sgt. Gall*******233;e

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                              #74
                              To test the authencity of you medal:

                              1) Burn a peace of thread;
                              If the thread balls up (with no ash) then it's a syntetic material, which in most instances indicates a post war made item.

                              If the thread burns clean (just turns to ash) it is a non-syntetic material & then has a greater chance of being period.

                              2) The UV light, this one is not very good

                              3) Get a white piece of paper. 'Drag' your medal around the white paper. If the paper is getting a little bit black its fake!

                              Bj*******248;rn,,

                              Comment


                                #75
                                The UV doesn't give garantie of original, you only see the pieces sold by the "Hero", he says always: "Original, kein UV-Leuchten..."
                                Mike
                                My spanish volunteer blue division collection: http://www.wehrmacht-awards.com/foru...d.php?t=506288

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