THIS SET WAS MADE IN 1947-48.THE 1/24 ALFA ROMEO FROM 1938 IS DIECAST WITH BRUSHES.THE TRACK IS MADE OF BRASS,BAKELITE & WOOD(HANDMADE).YOU COULD BUY 2 SETS & FIT THEM TOGETHER .THERE ARE ONLY 3-4 SETS KNOWN TO EXIST.THEY ARE VERY RARE.