I4unused Block Larger Than four 1ca to 6ca. in panes of fifty and 9ca. to 24ca. in panes of twenty-five, pristine mint, a few negligible brown spots mainly on gum side only merely mentioned for accuracy and the 4ca. has light gum wrinkle. Only a few such sets of panes have remained intact. An exquisite assembly of the highest exhibition calibre. Photo in colour