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And a newer item with a metal zipper could have been homemade. The US government started requiring full care labels that year, and many clothes made before then did not have them.
Keep in mind that an old dress could have a plastic zipper if the original one was replaced. If your garment has a sewn-in label stating how to care for it, it was probably manufactured after 1972.--- However, homemade clothing often doesn't have serged seams, so it can look vintage even if it's not.If your item's seams aren't serged, look for a manufacturer's tag to see if it's commercially made.When they do the information is stitched into or printed on the lining of the hat.Beginning in the late 1920’s, ribbon-like hat labels were sewn into the hats.