Tweed, boucle and low-pile velvet all read mid century, but only one of them survives a household with a cat and two kids. The specs on the tag tell you which.
A yard of forty-year-old barkcloth can be perfect or it can shred in your hands, and the difference shows up in a ten-second test you can do at the booth.
A period-correct fabric on the wrong frame reads as a costume. Getting retro upholstery right is half era research and half a wear rating nobody reads.