Tattoo is off of the 1967 album The Who Sell Out
It doesn’t get much attention due to the success of the three albums that followed. Tommy in 1969, Who’s Next in 1971 and Quadrophenia in 1973.
The big hit off of The Who Sell Out is I Can See For Miles. It is a great album and worth a listen. Tattoo is one of my favorite songs from it.