One of the odder anecdotes about that I've heard was from a friend of mine who worked for the museums in Fife around 1980, and got to sort through a recently-closed textile mill (in Kirkcaldy, I think). He found they had a few tons of tenting canvas in stock, all monogrammed "CSA". They'd made it for the Confederate army, couldn't get it through the blockade, and had stashed it away for 120 years (waiting for the South to rise again?). The company's receivers found plenty of buyers among the Civil War re-enactment crowd.