In my original Columbus Depot jacket the warp (it is cassimere) is a caramel to dark brown color. I am not convinced that it was always this color. I have researched and found that it was common for powdered starch to be applied to the warp to aid in weaving (lubrication?). Heat will turn the starch brown. My jacket was exposed to heat -such as an attic - in its life. I was wondering if anyone out there has seen reseach regarding the warp in CS uniforms or civilian cloth turning brown.
Joe Walker
Joe Walker
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