antique Germany china mug, tea or coffee cup w/ hydrangeas, 1800s vintage

Marked Germany heavy porcelain mug with beautiful hydrangeas - this is late 1800s vintage, over a hundred years old. It's about 3 1/2" tall, a nice big old cup. This has a little general wear from use, but no chips, cracks or staining. Probably has another hundred years left in it still!