This beautiful Pennant Cachet features the hands of a scientist preparing a slide for examination. It includes the text "Honoring the Crusade Against Cancer." I have been unable to discover anything about this cachetmaker. If you can help fill in the blanks, please drop me a line at email@example.com. I would like to find out if it's an add-on cachet or an original cachet overlooked by the Mellone Catalog.