I have always loved this pattern and right now it is listed on eBay by Rita at Chez Cemetarian
The "Walk-Away Dress".
(and I know you can get this in a re-issue from Butterick, but really, why? when you can own the original)
To me it is one of those perfect designs that can be a house dress or dinner dress and anything in between just with your choice of fabric and trim.
From Rita's listing:
During the 1950's, Butterick experienced a phenomenon it had not known since the 'Garibaldi Suit' of the late 1860's. It was pattern 6015, and it was dubbed the 'walk-away' dress, because it was so easy you could "Start it after breakfast... walk-away in it for luncheon!". It's simple yet flattering wrap design and easy construction were what made it so popular. Sales of the pattern were so great, that at one point manufacturing of all other patterns ceased, and only the 'walk-away' dress was produced until all back-orders for this dress could be filled.