I FEEL WHAT YOU SAY IS CORRECT, I CAN'T TELL YOU WHERE TO CONFIRM IT BUT I HAVE DETERMINED FROM STUDYING OLD SAVINELLI CATALOGS AND SHAPE CHARTS THE SHIFT FROM 4 DIGIT TO 3 DIGIT SHAPE NUMBERS HAPPENED AT THE SAME TIME AS THE USPS STARTED THE ZIP CODE.
I HAVE BEEN COLLECTING SAVINELLI'S NEARLY...