Idrija Bobbin Lace Vintage Idrian Doilies, Set of 11, Smaller Size

Idrija or Idrian lace is a bobbin tape lace, and I'm almost certain this is the type used to make these doilies. However, I am not a lace expert by any means. There are 11 of these vintage doilies, all pretty much the same. One measures about 4 inches, and the other 10 doilies are about 3 inches. All are a shade of white, and in fairly nice shape. Please see the second photo for more detail.