This is a lot of four vintage tiles as pictured. These tiles are not marked Robertson but were taken out of the same room as our other listings of the Robertson marked tile. The Robertson Art Tile Company was located in Morrisville, PA from 1890 to 1982. Robertson was purported to be the king of white wall tile, but also produced colorful decorative tiles designed by artists. These tiles were taken out of a local house and we have several different styles and patterns listed. The tiles in this listing measure about 6"x 3". They were installed in a house for decades and are not new. Some have adhesive still on the backs and may have wear and chipping from usage. YOU ARE BUYING THE FOUR TILES PICTURED. We have a total of 12 of these tiles available. Thanks for looking and let me know if you have any questions. 90881CB1