10 3/4 inches in diameter.  Four dinner plates in excellent condition from the University Club of Chicago - which is still in existence in downtown Chicago.  I believe this porcelain plates are from the 1940s or early 1950s.  Nice set of dishes to add to your collection.                   

Domestic shipping and handling in the U.S. is $29.50.  Foreign bidders are welcome with the shipping costs to be determined solely by Ebay International Shipping.   I will combine shipping. I have decided to sell my collection of antiques (and other nice items), which I have been collecting for the past 30 years.  Good luck with your bids.