The first is a 1940s black silk crepe dress with glass beads and rhinestone embellishments on collar and hip pockets. The dress has a full skirt that is gathered at the hips and a left side zipper closure. 
No size label

The second is a 1980s black rayon crepe dress with front scoop neck, raglan sleeves gathered into front bodice, gathers and draping at the hips, a deep V-neckline at the back with fabric bustle, and center back zipper closure.
Label: Destinee
Size Label: 6 

Approximate Flat Measurements Across Front:
1940s
Chest: 17"
Waist: 13"
Shoulders: 14.75"
Hips: 19"
Length (underarm to hem): 38"
Sleeve (shoulder to opening): 5.75"

Approximate Flat Measurements Across Front:
1980s
Chest: 18.25"
Waist: 13"
Shoulders: 18"
Hips: 17"
Length (underarm to hem): 35.75"
Sleeve (shoulder to opening): 3.5"