AO-4143g-4, 2007, Star Wars,BW Pictorial, Add On Cachet, C-3PO, SC 4143G, BW

Add-on cachet is:

A cachet design added to a cover which was originally uncacheted. An add-on cachet should be identified

by maker and date (mine are stamped on the back with the date) so that it is clear that it is not contemporary with the cover.