The 20-by-35-foot fabric work, titled Woman, was one of four that the National Gallery commissioned for its new extension in 1978. But not everyone loved it (certain critics in particular had harsh words for it), and it was replaced in 2003. But quite a few visitors were very fond of it, and one, a fledgling journalist, tried to find out where the piece went and why. Peggy McGlone writes about what her young colleague found.