that's not the "vin" number, all it tells you is it's a Canadian production 1/2T [model], could be any year, should be a line labeled "serial" that has a longer number including the 1314 as the 2nd-5th digits, the first digit indicates the year, like 01314xxxxx = 1950 .... but if you plan to buy an AD truck, it'll do for any year
edit: the 1600 series is a big bolt, 1.2-2T, but same cab [03 should be 'cab/chassis' I think]
Bill