"rare" Antique "original" John Deere Op Cast Iron

"RARE" ANTIQUE "ORIGINAL" JOHN DEERE OP CAST IRON TOY TRACTOR - MEASURES 12" LONG X 7" TALL (TO STEERING WHEEL) X 5 1/2" WIDE (AT REAR WHEELS) - THIS IS A LARGE HEAVY PIECE WEIGHING ALMOST 5 1/2 POUNDS - IT APPEARS TO BE 100 PERCENT COMPLETE WITH NO BROKEN OR MISSING PARTS - FLAT HEAD SCREW ASSEMBLY ON ONE SIDE - HAS ORIGINAL PATINA (NEVER PAINTED) - i WOULD GUESS IT IS FROM THE 1920'S TO THE 1940'S - i HAVE NEVER SEEN THIS ORIGINAL JOHN DEERE TOY TRACTOR...EVER ! - VERY SOLID WELL MADE AND DETAILED CONSTRUCTION -  IT WAS OBTAINED FROM AN 80 YEAR OLD GENTLEMAN WHO INHERITED IT FROM HIS UNCLE'S ESTATE -  I SEARCHED ALL OVER AND COULD NOT FIND A MAKERS MARK ANYWHERE (LOOKS LIKE A HUBLEY QUALITY/ERA)  - GORGEOUS PIECE OF TOY HISTORY