Hand-painted ceramic vase with cobalt blue pattern

I lost my hand-painted ceramic vase yesterday around 3pm. It's about 8 inches tall, white glaze with cobalt blue geometric patterns and a thin gold rim; there's a tiny chip on the rim. On the bottom is a small pencil inscription that reads LK 2019 and a faint Studio L stamp. I last remember having it near the entrance to the Boston Public Library on Boylston Street, probably on a bench outside while I grabbed coffee across the street. This vase was a gift from my grandmother and holds sentimental value; I’d really appreciate getting it back.