This Worcester Blue & White Tea Bowl is printed with the popular "Mother & Child" pattern. It dates c. 1775-1785. It's marked with the Worcester hatched crescent and the added letter "R".
It has a very slight nick to the foot rim which I have enlarged in the last photo. No cracks, no repairs, and no other nicks or chips. The cup rings when tapped.
The diameter is 2-7/8" and the height is about 1-5/8".
I also have the Caughley version of the Mother and Child pattern for sale in my shop. And please also see the other 18th C Worcester & Caughley porcelains I have for sale here.