unknown Arkansas? porcelain # 539

This is an undated/unmarked porcelain license plate # 539, which is "farm fresh", meaning that it was found in a box of license plates from Arkansas from the 1910's and 1920's. Because it was found with this lot, we are assuming that it is linked with a City or the State of Arkansas, but more research would need to be done. The plate measures 7.5 inches long X 5 inches tall, so it is a smaller plate. I would describe the color as being more purple in tone than royal blue.