This adorable dress, which gives a nod to the mod 60s (one of my favourite fashion eras) is by Milly of New York. The simple shift dress has armhole and neckline bands that end in a racerback, embellished with a bow. The best patterns I can come up with are the following:
Neue Mode 23353
Good points:
- armhole bands
- neck bands - although they are the wrong shape, they could be redrafted into a circular shape
Bad Points:
- the dress is not a simple A-line, but rather has a princess bodice which continues into the skirt
- the back of the dress is not right - no racer back shape
Vogue 8229
Good points:
- neck bands
Bad Points:
- the dress is not a simple sheath dress - it is gathered at the neckline
- the back of the dress is not racerback
Simplicity 3799
Good points:
- neck bands of the proper shape in front
Bad Points:
- the dress is not a simple sheath dress - it is gathered at the neckline
- the back of the dress is not racerback
Butterick 4974
Good points:
- sheath dress
- nicely shaped front
- racer back
Bad Points:
- no neck or armhole bands
I looked high and low at actual vintage patterns, to no avail. Personally, I would start with B4974 (the last pattern above) and go from there. The neckline and armhole bands could be drafted fairly easily for this dress. If anyone else has any other pattern suggestions, please leave a comment with the info.