Vintage Lionel 6-1381 O27 Cannonball Train Set Tested With Box READ

Vintage Lionel 6-1381 O27 Cannonball Train Set Tested With Box READ. Set ctonains all cars, power, track, and manual. It comes with original box and all shown in pictures. This has been tested and works, but is sluggish around the track, so does not seem to be getting full power. I do not know what the issue is. Yellow car is missing black side clips. The lock-on has a broken piece, but is still functional. This is sold as-is becuase of the issues listed. Cars and tracks due show signs of use and have minor rust on them. Box has damage as shown in pictures.