Hi! I was hoping to get some help dating this vintage petticoat, and also identifying what type of lace it is. It's semi-sheer muslin -- linen I believe, or possibly silk (?) - with I believe cotton netting + embroidery on the muslin & on the netting The closure in the back has 3 small snaps + a new looking 1/2" flat hook & eye. I'm not sure if it's "lace" or just embroidery. I looked online (link removed by admin) but didn't see anything super close to this. I'm novice with this type of garment so any help much appreciated, thanks!