Recently picked up this Wilson and was wondering if anyone can explain the model number. This is definitely an early 50's glove but the model number is G1333. Before and after the model # is a dot. Does this mean anything to anyone? I'm wondering if it is a military desigination or something else. The other stampings are normal on other Wilson's I've seen - Kurv-Form, Professional model. But I've never seen this type of model number. Any clue?