I have heard, but have not verified, that Driftwood was made by a company called Scully Industries in Indiana.

made for at least 3 years 1966-1968

Here are some pictures of the 18′ 1966 or 1967 Driftwood my family owned. These pictures were taken in 1967. Obviously not professional models in the picture of the interior…. (posted by Brent Michael, Murfreesboro, TN) 

Here are some pics of a 1966 that was for sale in Utah: