Colin Glascoe vintage70s velvet maxi dress

Velvet printed dress (likely rayon-no fabric info), has high waist, zips up back, decorative covered buttons at center front, gathered bishop lower sleeves. Bust is 37,” high waist is 31,” hips to 60,” length is 54.5,” with extra 2” of fabric at hem to let out if wanted, sleeves are 25” long. Marked a 14, but vintage & English sizing run much smaller; please go by measurements.