Carter Hoffman was a well-known artist from Los Angeles who made individually hand carved wood mascots for various colleges back in the 1950s. These figurines can be easily identified as each has the “Carter Hoffman Original” stamp on the bottom of it’s feet. Sold under the name “Carter Hoffman Artcraft” they have become highly collectible and can routinely fetch several hundred dollars and up. A brochure from the 1950s lists over 120 different schools that they made mascots for, including Oregon State College. They also produced bottle stoppers for a period of time which were usually the heads of a mascot glued to a cork.
The full mascots were advertised inside college football game programs, like this one below showing the Ivy League mascots from a 1954 Harvard-Columbia program. They could be ordered from Carter Hoffman in several different sizes. Most are 4-5 inches tall, however there are 8-10 inch versions which very infrequently appear. This Oregon State Beaver Mascot below is about 5 inches tall. Because they are hand carved, each one is unique.
I have only seen two different Oregon State Carter Hoffman carvings and only this one bottle stopper, all three of which were sold by Inside The Park Collectibles, an online auction site that specializes in these mascots. The first OSC mascot and bottle stopper were sold in 2009 and the other mascot sold earlier this month, nearly 5 years after the first! That is a pretty good indication of their rarity! Point being, if you see one for a decent price, even if for a different school, buy it!