Vogue First-of-the-Month Collection, December 1946

A 'One-piece dress and jacket,"Easy-to-Make"', courtesy of Vogue Patterns.  Interestingly, this is clearly a summer dress - though it appears on the cover of a catalogue published in the U.S.A. in the middle of the northern winter.  Perhaps Vogue intended it to be made by those lucky souls who could afford to holiday in warmer climes - or perhaps it was aimed at slow amateur dressmakers who would need six months lead time to be ready for summer!