Just be aware that the patterns may/probably are NOT ACCURATE. I dealt with Oxmoor House books in the mid 1970s as a new quilter. Had some of their books and one pattern I recall had a patch ½-inch off. Try to fit a 3-inch square to a 2½-inch triangle and you're sure you're going nuts. That's when I learned to premeasure templates. Then finding out one company's inch is not another company's inch is another story. These are only two reasons I'm such a stickler about being accurate. $300 sounds like a lot to me for buying something that you have to redraw, however, to a collector of old patterns, this may not matter.
SandyQuilter