In 1966 Century 21 created a 16 page supplement to the December 1966 issue of the "British Toys" trade paper. It contained a lot of information about the "new" Thunderbirds merchandise. About half of it is pure Thunderbirds and the rest deals with other properties being merchandised by Century 21 including The Prisoner and The Man from U.N.C.L.E. Each thumbnail image is a link to a larger JPEG version.