new old stock vintage sewing trim, huge spool of cotton eyelet flat lace edging

Lovely vintage white cotton eyelet lace edging, nice for cottagecore / country style fashion or home decor sewing, or heirloom sewing projects for children or dolls. It's 3/4" wide, clean and nice and in very good condition. I don't want to unwind this and mess it up, and I am not really sure how many yards there are here!