1960's mid century floral maxi dress w/ tie

Luxurious vintage maxi dress from the 1960's. Retro pattern of roses in vivid shades of orange, burgundy, pink, and olive green against a white background. Opalescent buttons all the way down front. Matching adjustable sash. Pockets on both sides of hips. Material feels like nylon, texture is slinky. Made in the USA by Carol Brent. Fits up to L/XL but see measurements to confirm. Bust  - 54 Sleeves  - 13.5 Waist  - 46 Hips  - 48 Length  - 54