3c Washington, Lowenberg Patent plate essays (79-E8a, 79-E9a), seven blocks of 20 (5x4) of former, different colors or shades, also incl. six blocks of four and thirteen singles, some essays in block and all singles show the usual faults associated with these fragile items, but will still yield many fine-very fine essays, good-very fine lot, Scott retail $1,239.00