Vintage 70s Prom Or Homecoming Dress Light Blue Floor Length hippy boho

Vintage 70s Prom Or Homecoming Dress Light Blue Floor Length hippy boho The label says this is a size 10. It does NOT fit like a size 10. Its much smaller. I think its closer to a size 5, juniors. The first pics make it appear a little darker than it actually is. The bottom front has some "stains" on it, i have not tried to remove. The ribbon belt needs to be replaced and i THINK this originally also had ribbon straps that went over the shoulders. Look at pics closely please.