The only way to know for certain what year/model it is is to use the Chassis ID number found on the ID Plate under the right hood affixed to the cowl, and also stamped on the right front frame horn above the forward spring hanger. Until you have that number, it's all a guessing game. The number will begin either CC or EC. If EC, then it is a '46, and if CC then the number will tell us what year. The numbers after the two letters will tell you the series, model, and wheelbase.