This is a Vintage McDonald's Characters "Ronald McDonald and Hamburglar Share a Big Grin when Big Mac Captures a Snowman Twin" PLASTIC Collector's Plate. Made for McDonald's in 1977. It is about 10 inches round and  is in great used condition. It has minor wear from use, but nothing major.  No cracks or stains. Nice display piece. Made in the USA by LEXIGNTON. EAG