Being my only yard sale find, I suppose that makes this THE yard sale find of the year! I found this cool old O-B multipart at a local yard sale yesterday and was wondering if anyone could tell me anything about it. It's a 3-shell jobby, with the firing rest on the crown, and the classic B-inside-O marking on the ear. The ear tops are unglazed. The glaze is super drippy which makes it look just amazing. If all the multiparts I find around here looked this colourful, I'd have to find space to start collecting the things. :P The piece is around 8" tall, and its shells are, from top downwards, about 9 3/8", 6", and 5" wide respectively. Any information on age, rarity, etc. would be greatly appreciated. Thank you!

Looks like this one is one of an M-3150A, M-3080 or M-3156. Getting mixed reviews on it, but either way it's cool. Thanks, guys!