Vintage mid century white yellow and black sling back kitten heel sandals 5 1/2

Vintage 1950's- 1960's white, yellow, black and brown sling back heeled sandals in size 5 1/2. by the brand Peko woven detailing on toes elastic band on heel some wear, especially on soles and few small stains on exterior They seem to be made of vinyl the size on bottom sole is 5.5 but there are many numbers on the inside of the side strap - see pictures the foot bed length is 10" which is long for a size 5 1/2