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Old 10th August 2020, 04:32 PM   #7
Lee
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Join Date: Nov 2004
Location: Upstate New York, USA
Posts: 884
Default Scarf weld?

Sometimes there will be a transverse difference in patination down in the lower forte like in your images reflecting different materials owing to a 'scarf' or overlapping weld where the tang is composed of a different (usually lower carbon) material. If this is the case, the location of the junction measured from the shouldering will be different on each side or will be seen just on a single side.
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