February 5, 1968
From: Bob Justman
To: Gene Roddenberry
Gene: If you haven't already heard about it, we are missing some wigs and hair pieces. Bill Shatner borrowed all four of his hair pieces when we finished shooting. There are two new ones and two old ones. The new ones are worth approximately $200 apiece and the two old ones are worth approximately $100 a piece. Should Star Trek go again next season, this no doubt means that we will have to construct new hair pieces again for Bill because he will have used both the old ones and the new ones to such an extent that they will not be photographable. This I guarantee, since it has happened to us before.
From a memo reprinted in Star Trek Creator: The Authorized Biography of Gene Roddenberry by David Alexander, 1994. (Sourced here from the internet)
