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The Rutherfords present Wally (Tony Dow) with an antique pipe, one so valuable that it can only be used for ornamental purposes. Unfortunately, Beaver (Jerry Mathers) can't take his eyes off the pipe -- and together with his pal Larry (Rusty Stevens), he is determined to test it out (and never mind that he won't be able to smoke legally for at least 13 years!) The boys first fill the pipe with coffee, then with tobacco, then light up...with the expected results. Outraged upon finding the damaged pipe, Ward immediately assumes that Wally (Tony Dow) is responsible -- and it looks for a while like Beav is going to let his older brother take the rap!