Fabrics were still being made at 36" wide in the 1960s but that is about the top end for US production. I don't remember 29", could it be rayon?? Looks to me from the scale that the blue piece is probably around the 40-50s, but that's just a wild guess. I know I have some of basically that tone of blue that is earlier.
And don't forget about metric measurements instead of yardage. That one has fooled me more than once.