This ceramic mug used to set in my Mother's china cabinet.
When we were disbursing her possessions, I noted the signature on the bottom - M. Buenz.
Apparently my great-aunt Martha was an artist, too. She was probably in her late teens when she painted this. I located her Grandson who lives near Austin and took it to him so that it could be added to their small collection of her work. He and his wife seemed to be quite delighted to have it.