HANDMADE Short Sleeve Cotton Crochet Top Ivory Cream Size Small?

This pretty handmade cotton crochet top is in very nice pre-owned condition!   There is no size tag, therefor please consider the following measurements before purchasing.  Thank you! Measurements (taken while laying flat): Bust (armpit to armpit) - 18.5" Length (top of shoulder to end of hem) - 20.5"