AO-4414c-3, 2009, Early TV Memories, FDC, Add-on Cachet, Standard Postmark, The Red Skelton Show, SC 4414c ENVELOPE SEALED

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.