Too many variables to say. my oldest quilt was made by my mother in the 1930's and now is so delicate--and full of age related tears--that it has been relegated to storage in my linen closet. It was not made from LQS fabric, but probably from fabric she got at Wacker's or Woolworth or maybe J.C. Penney. It is yellow and blue and I am going to put it in a local quilt exhibit, along with the Wiss scissors she used to cut it out. It was used as a bed covering all the time until it became so fragile and was probably washed in an old fashion wringer washer a good part of its life. I don't think it ever occurred to her to wonder how long it would last. She was 87 when she died 15 years ago and I am 78 now. I am guessing the quilt is at least 75 years old and maybe older. froggyintexas