One can always dream.
At the time of writing this 1930s Jean Patou couture evening dress is going for just £10.49, however it has 9 days left to run, so I wouldn’t get my hopes up too high.
It’s a beautiful, simple style, with silk velvet straps, hand overlocked seams and horsehair stiffener to the hem. I can already imagine it with furs and diamonds for a Christmas party.
If it’s your size, good luck!