4 x Radio Times classic covers postcards DR WHO, TARDIS, DALEKS, & CYBERMEN

No. 49 Doctor Who (Jon Pertwee) - image of cover from 1972

No. 89 Tardis - image of cover from 2005

No. 90 Daleks - image of cover from 2005

No. 92 Daleks v. Cybermen - image of cover from 2006