This vintage maxi dress by Frederick's of Hollywood is in excellent condition.  I'm guessing it's from the 1970s based on the style, but have been unable to verify this --- it could be even older.  Based on the Vintage Fashion Guild website, this label was used from the late 50s through the 70s.  Bright turquoise color.  Back zip closure with hook and eye.  Round collar.  A-lined skirt falls from a fitted bodice.  Size and fabric content are not available, but is an XS. The fabric feels like a wool blend or a double knit, has some stretch to it. Bodice is lined with a floral jersey fabric.  This dress was purchased by me at an estate sale in the mid 90's, and I have worn it once since then.  Seems like time to let somebody else enjoy it!  

Measurements flat:

Outer edge of collar 8.5"

Armpit to armpit 15-1/4"

Waist 13.5"

Neck to hem 54"

For reference, here are measurements of the mannequin:

32.5" chest

25" waist

Hips 34"

Dress fits but is tight on the mannequin (as shown)