Stitches - Crochet,how many ball of 3 size, 150 yards crochet thread would it take to make a 61" x 79 1/2" Bed of roses

Crochet,how many ball of 3 size, 150 yards crochet thread would it take to make a 61" x 79 1/2" Bed of roses

Trow calls for 60 oz. worsted weight yard. wan tot do it in thread .

unfortunately no-one here will be able to help you much with this as we do not know the guage for the stitch, hook or yarn you are going to use , we would also need the weight/length of the amount of yarn used in a test swatch - without this information we cannot even give you an approximation for the yarn required
http://www.vintagehomearts.com/ http://www.vintageknits.com/osc/ http://www.finepatterns.com/ http://www.finepatterns.com/index.php?main_page=product_info&products_id=161
Take this information to the math site of answers and see if any one there can help you. I have a spool of size 10 thread and it weighs 7 ounces and holds 1000 yards.. See if someone there can get you close to the amount you need. When I say close you can always buy more and take back the unused ball of thread for a refund.