This is a rare set of 4 saucers made by Homer Laughlin and 4 coffee cups made by Buffalo China for the Marriott Hotel in Washington DC.
The backstamp on the saucers say, "MARRIOTT HOTEL WASHINGTON, DC BY HOMER LAUGHLIN".
The cups measure approximately 4-3/4" in diameter, 1-3/4" tall. The saucers measure approximately 5-1/2" in diameter.
They are in excellent condition with no chips, cracks or scratches.