Vintage purple dress withh a 1950’s vibe

Purple vintage dress by Willi of California I’m not sure but I think this is from the 1980’s but it has that classics 50’s vibe and wouldd look amazing with a petticoat underneath. It’s a vintage size 12. Bust: is 40-42” because of the style of the top there is movement to open up more. Waist is 30-32” and over all length to: 45”