Advance 7846; ca. 1956; Girl's Sleeveless Blouses. One Basic Blouse becomes Four different blouses! Only Two Major Pattern Pieces, plus facings, make basic Blouse...(V1) round collarless neckline, faced...cap sleeves has turn-back hem. Back neck zipper closing. Detachable Puritan collar (self bows) with stay. (V2) Attached rolled collar, button-trimmed tab detail. (V3) Attached round collar, bias sleeve cuffs…