Vintage Ivory Crochet Doily with Butterflies

Pretty vintage oval doily in ivory crochet. Lacey and airy with pretty butterflies. It measures about 20" x 13". Looks and feels like cotton or linen to me and my best guess as to age is circa the 1950s or 1960s. Has been gently laundered and ironed by yours truly.
Excellent vintage condition. I spotted one break in the lace near the center.

Please note that many of my items are vintage and/or made using vintage materials. I do my best to list any major issues but some signs of life and love are to be expected and only add to their charm.