MaxMara Weekend Dress midi black and gold 3/4 sleeve made in Italy

Max Mara Weekend made in Italy formal dress midi length black and gold colour with zipper closure at the back. Excellent condition, worn once. Some stretch in the black fabric. Measures as Size Small but size and material tag not there (label pictured). Measurements: Pit to Pit:18 inches Length of dress: 44 inches Sleeve length: 17 inches