Hy Gibbsy, welcome, and Happy Easter right back at ya. If you could post the whole serial number that would help to pin down what you have, an "1100" series would be a 1 1/2 ton truck. A typical Canadian serial number for an "1100" series would be 11133...., for a chassis with cab with a 137" wheelbase. The "1100" series in 1951 had a g.v.w. of 11,000 lbs., hope that helps.