...well the centre to be acutrate.
It is basically made up from two lace squares knitted from the centre out - Such an interesting idea I cast it on almost immediately to see how it worked.
Having established I don't like magic looping with very few stitches . I cast on again on double pointed needles and then swapped to circulars as it grew.
Lace being lace the pieces were quite scunchy when they came off the needles so I decided to block them to size (for my own peace of mind) beforre joining and knitting the neck, arm and bottom welts. The pattern has blocking after the welts have been added.
...but a bit of seaming and rib welts and you have a pretty and shapely top.