eatre By Zelma H. Weisfeld The new Theatre Museum opened in London on April 23, 1987 (Shakespeare's 423rd birthdayl in as appropriate a location as could be desired: the midst of the revi talized Covent Garden - an area of non-stop street entertainments, vendors' stalls, and sidewalk cafes, as well as the Royal Opera House. The Museum is housed 28 TD&T' FALL 1987 in the street-level and basement floors of a corner of an impressive nineteenth-century building that was the old Flower Market. The project architect was Jo Kent, and the consultant architect and designer was John L. Patterson. The idea of a separate theatre museum has been a