China guys - Help!

[halfdime]

I've been sifting topsoil in the back yard to prepare for a planting of thornless blackberries (yum!), and today I found a little piece of china that intrigued me. We've all found china, either in the hole with something our machines detected, in a privy or just working almost anywhere people have been for a long time (or a long time ago). Usually, I wonder what the whole piece would have looked like, but today I'm curious enough to ask for help. I'm posting two pictures, front and back of the same small piece of china; my hope is that someone will recognize it or refer me somewhere that will be of help. Thanks!