Art: Persia in Piccadilly

White-tired limousines and archaic London taxicabs rolled under the smoky colonnade of Burlington House in Piccadilly last week bringing notables to the open ing of the great International Exhibition of Persian Art. Waiting for them inside the building were exhibits with an insured value of $30,000,000: crown jewels from the Shah, boxes of miniatures from Tur key, rugs, bronzes, ceramics and textiles from the U. S., France, Germany and 21 other nations. The show was designed to follow the great Flemish and Italian exhibitions at the Royal Academy. But there was this difference : nearly every picture in the Flemish...