Choose finished size depending on how you like your sweater to fit, but know that the ribbing is stretchy, and offers a wide range in each finished size. Sample was knit in a size 42” to fit a 41” bust, but also flatters with negative ease up to 48” bust.
Note on yarn choice: some 100% wool yarns may make this sweater look a little stiff because of the ribbing pattern. It’s up to you and your stash, but I think a yarn with a small amount of silk, or up to 50% alpaca content is a good option for this pattern.
Yardage for every size 33”=1000yds, 36”=1070yds, 39”=1130yds, 42”=1240yds, 45”=1310yds, 48”=1430yds, 51”=1500yds, 53”=1570yds, 57”=1670yds.