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View Poll Results: always a fake, if it shines under UV Light?????
always a fake 86 14.90%
not necessarily a fake 401 69.50%
no idea, you tell me...;-)) 90 15.60%
Voters: 577. You may not vote on this poll

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Old 08-22-2006, 03:43 AM   #61
Hans N
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Quote:
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.
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Old 08-22-2006, 08:27 AM   #62
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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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Old 08-22-2006, 09:02 AM   #63
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Quote:
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.
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Old 08-28-2006, 05:36 AM   #64
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Quote:
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???

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Martin
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Old 08-28-2006, 05:49 AM   #65
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both,Ive been messing around with it a bit all weekend..thats called boredom
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Old 09-30-2006, 08:14 AM   #66
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could anybody explain to me the burn test?
Filip
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Old 09-30-2006, 08:26 AM   #67
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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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Old 09-30-2006, 10:57 AM   #68
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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.
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Old 09-30-2006, 06:41 PM   #69
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Thanks
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Old 10-21-2006, 05:44 PM   #70
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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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Old 10-21-2006, 06:33 PM   #71
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Quote:
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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Old 11-22-2006, 09:06 AM   #72
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Thanks for the info

Filip
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Old 03-17-2007, 02:02 PM   #73
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I heard something:

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

Sgt. Gallée
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Old 03-17-2007, 02:48 PM   #74
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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!

Bjørn,,
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Old 03-18-2007, 04:40 AM   #75
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The UV doesn't give garantie of original, you only see the pieces sold by the "Hero", he says always: "Original, kein UV-Leuchten..."
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