Irene Lentz designed fitted jacket in a blue-gray houndstooth pattern with double buttons down the front. Lentz was a two-time Oscar-nominated costume designer. This piece, likely part of a suit, dates from the late 1940s when she began her mass-market line with top department stores, in this case, Gunther Jaeckel of New York City. The extremely well-tailored jacket has several unique design details that really set it apart from today's clothing- starting with the incredible double button…