Antique Waterfall Vanity 1930s/40's

Antique waterfall vanity, top sits on base it looks like originally there would've been a piece at the back to screw into the top, would be easy enough to do with a piece of wood but I've always just had it sit on top and had no issues. Good condition some scratches as shown in photo and seat cover shows signs of age Base is 38" long x 18" wide x 30" high Mirror is 26" x 33"