I want to thank everyone for thier imput. This site has been sooo helpful. Anyway, sending another picture of bottle. I cannot identify what may have been in them. The bottle is like a soda bottle, about 6 inches tall. There is no other markings except the Howdy Doody characters on the base. We have found Flub-a-dub, Phineas T. Bluster, 2 Clarabells, and now Howdy himself. We have also found several more identical bottles with no Howdys, just numbers. Trying to figure out if it was some promotional gig, like find a character and get a free pop. Anyway they are not the popular jelly jars, they are bottles. Any ideas??? Thanks, Tonya