SUPER RARE TENDER MADE BY LIONEL IN 1935 TO COMPLEMENT 392E STANDARD LOCOS THAT WERE ALREADY OUT OF PRODUCTION.  THE WHISTLE WAS SO NOVEL AND SO MUCH IN DEMAND THAT LIONEL MADE UP  SOME WHISTLING TENDERS TO RETRO FIT TO EXISTING LARGE LOCOS.   OF COURSE IT WAS 1935 AND NOTHING WAS SELLING TOO WELL SO THEY PROBABLY MADE UP AT MOST A GROSS OF THESE ITEMS.  THE SPECIMEN SHOWN IS A NICE ONE, WITH WHISTLE WORKING AND ALL TABS INTACT. AND THE BOX IS RIGHT ALSO.