vintage chanel heels

vintage chanel blue metallic heels, bought in japan! owner said her curated consignment shop was all authentic but selling as dubious authenticity due to my lack of assurance/expertise. i was told the soles were resoled in japan hence made in japan soles. but please examine pics!! super cute nonetheless with mule style with chain chanel detail :) size 23.5 is supposed to be size 7.5 women’s but fits more like a 5-5.5 women’s in my opinion! signs of evident wear and age, cracking on one heel, yellowing of logo, new soles, etc. bought for $109