701097 Three-arm bow plane, c.1834-39 (beech, boxwood, ebony, rosewood, brass, steel & ivory) by White, Israel (fl.1834-39); length: 19.7 cm; David Russell Collection; (add.info.: This masterpiece of creative thinking follows a design which was patented on 9 January 1834 at a time when East Coast plane-makers were searching for the answer to problems of parallelism. White solved the problem with this plane, the first three-arm plough. ); American, out of copyright.