THESE TIRES WILL NOT FIT BERKSHIRE ENGINES.  THEY ARE TOO LARGE ID.  BERKSHIRE STEAM TIRES ARE IN ANOTHER LISTING

8 EA. LIONEL STEAM ENGINE TRACTION TIRES 8 EA. 1 " INSIDE DIAMETER TRACTION TIRES LIONEL STEAM ENGINES. 3.3 MM WIDE. 
THESE TIRES ARE BETTER THAN THE STANDARD RUBBER AND PLASTIC TIRES THAT COME WITH A LIONEL ENGINE, THEY ARE ALL RUBBER FOR BETTER GRIPPING TO THE TRACK BETTER PULLING AND BETTER HILL CLIMBING !!

hese are Lionel and will work with Lionel, Kline, Williams, Weaver, ATLAS or any O GUAGE Steam Engines THAT USE  1 " INSIDE DIAMETER TIRE
PART# 242-206

LIONEL TRACTION TIRES

BRAND NEW.