The serial numbers were basically manufactured in sequential order.  Some serial numbers were never manufactured, while many special serial numbers were made during the regular manufacturing process.   These special numbers are too vast to list, however we have included them in the quantity counts.  The Deluxe and Standard models were not distinguished in the log books.  The Lightweight models were introduced in Sept. of 1980 and are included in the above counts and fall within the serial number ranges above.  Each Lightweight is identified with a "LW" at the end of the serial number.