Hello everyone; Im looking for help as usual. As my collection of Cross pens, including ballpoints, continues to grow, I am trying to find out more about the dates of changes to the Cross pen clip imprints, and cap top imprints. I know that the clips of older models had a script or longhand imprint which changed to a block print or upper case capital letter imprint. Im very interested in finding out when this particular change occurred. Im also looking for a list of model numbers which describes Cross pen model numbers with details of the associated pen/s. Any help or guidance that anyone can give me would be very much appreciated. Thanks in advance.