Hi Rich and thanks for adding this information. As well, any company revisions to the content of the form would have resulted in a new or revised plate being prepared as well, ostensibly with a new date, so we have a couple of possibilities for form date changes. My guess is that the first printing of form 632 carried no date, and subsequently one appeared that carried the 11/20/12 date, followed by one that carried the 8-20-14 date. If anyone has a form 632 with a different date, it would be very interesting to note, along with the serial number of the machine. For that matter, it could be informative to compare forms with serial numbers and A-series model numbers in general. Andy On Jun 22, 2007, at 3:50 PM, Rich wrote: > Common practice in the printing industry was to date the printing > plate. I suspect the date is the plate > date. They would pour the plate and make a press run for the > larger customers. At some point the > 11/20/12 plate would be considered worn out and melted down or tossed.