This is a Russel Wright (Steubenville Pottery) American Modern chartreuse coaster. This pattern, American Modern, was designed by Russel Wright, a famous American industrial designer. It was manufactured from the late 1920’s until the 1960’s. It was a very popular pattern.
I have four (4) of these coasters for sale, each one separately. They are all in very good, used condition.
I am attaching pictures. If you have questions, please e-mail.