Bureau of Printing & Engraving. Please note that all photos are stock unless explicitly called out otherwise in the condition section of the listing. For plate block listings, plate block number and position may vary.Zip block positions may also vary. The item "Scott# C1 Curtiss Jenny 6c Block of Six, VF/XF MNH OG Scott $480+" is in sale since Saturday, May 29, 2021. This item is in the category "Stamps\United States\Back of Book\Air Mail". The seller is "prolific_author" and is located in Woodinville, Washington. This item can be shipped to United States.