If you are beginning to learn about maker's marks on dishware, there is a lot to learn, and this may take some time. First and simplest is to describe the mark on Google images and hope that something comes up. You may be led to sites that feature lots of marks, or backstamps.
You can also use a book for research. There are quite a few out there, available at your local library or you can buy one used. Even an older book will work as you are not looking for a value. Older books show outdated values, but the marks will be informative.
Some books that may help you:
"Pictorial Guide to Pottery and Porcelain Marks" by Chad Lage is nice because instead of just line drawings, images depict the actual dishware and what the mark looks like on the dishware.
"Kovel's New Dictionary of Marks Pottery and Porcelain 1850 - Present" by Ralph Kovel.
"Miller's Antique Marks" by Judith Miller