This one is a recent estate purchase.......... . ..................This lot includes an original vintage parts for   Lionel 671 2020 681 1947-54 and others.  steam loco . complete smoke assembly. Smoke unit, piston, lever and attachment screw. Tested and works fine. Pulled working from a 1947 671 but should work on all turbines except 1946.   ..View pictures for further description......