mcculloch 39 was produced from 1957 to 1959. 3.3 cubic inch, or 54 cc's. value depends alot on condition. 39's are fairly rare, although vintage mccullochs don't usually go for alot, the exceptions being the 2 man saws, and the super pro 125's. personally, i love the old macs, and have a bunch of 'em in my collection.