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03-21-2019, 01:40 PM | #13 | ||||||
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The last bit of metal work that needed to be addressed on this A-1 Repro was, well... the Address.
What is the point in "Meridenizing" a Repro if it still has a Japanese makers mark on the barrel rib. I sent the barrels to Glenn Fewless to have him laser weld up the whole makers mark. As well as 1" of the center matting so that the length of the legend could be made larger as to fit the new mark. I then cleaned up the welds by hand. I then had them rolled with the original Peerless Steel makers marks but Turnbull. IMG_2843.jpeg IMG_3172.jpeg IMG_3173.jpeg IMG_3174.jpeg IMG_3175.jpeg IMG_3422.jpg
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03-21-2019, 02:28 PM | #14 | ||||||
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Brian,
In 50 years, how will someone know this is a customized repro with the markings removed and restamped with original markings? Ken |
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03-21-2019, 02:38 PM | #15 | |||||||
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Quote:
Serial numbers and barrel flat markings.
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03-21-2019, 03:45 PM | #16 | ||||||
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The real answer to that question is "It just doesn't matter." There are so many fakes out there right now that buying a graded Parker 50 years from now, just like today, demands that the buyer know what he is looking at, or just not care. Brian is creating an exercise in gunsmithing, not an attempt to create an original Parker. As the Cobra driver says to his wife, "Sit down, hold on, and shut up", not neccesarily in that order. Go for it, Brian.
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03-21-2019, 04:08 PM | #17 | ||||||
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In 50 years there will be metallurgical DNA tests just like human tissue matching today - able to distinguish and verify Belgian, German, Japanese and US Steel types. Critical analysis for verification of authenticity will involve fanatics taking micro-thatched files to hidden parts of the steel, then analyzing them for purity. 100 years from now, there will be home kits for the DIYs to authenticate grandpop's old bird guns.
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03-21-2019, 09:10 PM | #18 | ||||||
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Carbon, siliconn, manganese,P, S, Cr, Ni & Mo are elements which do not change when they go on a trip around the world. While these are the basic elements found in steel, the balance of Fe, iron, is still over 95% of the makeup. Regardless the melting method, it is virtually impossible to duplicate the exact chemistry in successive melt batches
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03-23-2019, 12:01 PM | #19 | ||||||
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I think that XRF can be used to determine the elemental composition of steel and provide a fairly accurate "fingerprint" of the steel sample. It is a surface analyses technique and the sample tested needs to be big enough. These days they have hand-held analyzers that can provide almost "instant" results. Sulfur and phosphorous may not be detectable that way.
If only a small sample is available, it could be dissolved in a mineral acid and analyzed using ICP-AES which I think can detect and measure all of the elements Edgar listed. I am not a metallurgist but I would venture a guess that the elemental composition would be the same throughout the test sample except, perhaps, for the carbon content. Again I am guessing but I suspect that the carbon content may vary widely within the sample, i.e. higher at the surface compared to at the center of the test sample. |
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04-08-2019, 10:08 PM | #20 | ||||||
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