1970 was a fantastic year for those washers! It had 2 additional rows of holes at the bottom of the tub for better sediment removal (Feb 1968), 4 level water switch (Dec 1968), 1 minute advancing timers with Permanent Press (Feb 1969). Chrome lint filter discontinued Aug 1972, older style bleach injector, chrome trim, and better designed acrylic timer dial...all gone by Jan 21, 1975. Tub light removed Oct 1975.