The picture below shows a larger view of all (6) Different Old McDonald's Restaurant Advertising Character Premium Toy Rings in this lot. These are not dated but they are believed to be from the 1970s or 1980s. They are made of colored plastic with painted raised surfaces. The rings have a divided back that spreads apart to fit any child's finger. Only one ring is marked on the back, and it has a pop off blue ring. The posts from the ring are Ronald’s eyes. The following character rings are included in this lot:
Grimace Birdie Ronald McDonald Ronald McDonald (marked: SPECIALTY PREMIUMS INC. 1971) Halloween Jack-O-Lantern (marked: SAFETY TESTED FOR CHILDREN 3 AND OVER) Police Officer Big Mac
To judge the sizes the larger Ronald McDonald ring face measures 1-1/4'' wide. These appear to vary from excellent to mint condition as pictured.