Vintage Hand Made Wedding Dress

This was my Aunt’s wedding dress and train from the early 70’s, I was told my grandmother handmade it and there are no size tags. It’s been preserved and comes in the box pictured. It looks like satin or silk but I’m not sure what the actual fabric is, and is in excellent condition. I took the following measurements. Dress 18” armpit to armpit 24” arm length lace to end 57.5” top of shoulder to bottom of dress 28.5” across the bottom 12” sleeve at bottom 72” top to bottom on train 52” across widest part of train