Included tag reads:
"Mrs. Donovan Cut Velvet Morning Robe, NY, 1896
Beige velvet hydrangea blossoms cut to ombré fuchsia-pale pink silk, deep white satin shawl collar edged w/ black beading"
Label: Mrs. C. Donovan / 280 Madison Ave. / New York 

The original pattern and cut of this piece remains uncertain. While the overall shape of the garment from the waist down appears close to the original design, the sleeves and neckline have been altered. The way the satin collar is worn in the image is only one possibility as the panels extend loose from the neckline. 

Approximate Measurements:
Shoulders: 14"
Chest: 39"
Waist: 33"
Hips: 56.5"
Length (underarm to hem): 60"
Sleeve (center back neck to hem): 24"