handmade crochet cotton lace corners, triangle insertion or trim for napkins or hankies

Two sets of four handmade lace corners, crocheted of cotton crochet thread. These have never been used, though they're about 80 years old - vintage, almost antique.

These haven't turned out as exact matches to each other (size varies a bit). So you might have a little trouble edging a tablecloth, but we think these would probably work fine as applique trims for napkins or hankies!