1c Benjamin Franklin - Gray Blue. 1881 American Bank Note Co. 1999 PF certificate #333737 ("never hinged"). If you have questions regarding this Scott #206, please contact Christopher Rupp. Rupp Brothers was established in 1975 - this is our 48th year in business as professional philatelists.Contact Christopher Rupp to sell your quality United States stamps. Well-centered unused and postally used stamps are keenly sought for a sophisticated and broadly-interested philatelic clientele. Early imperforate issues, 1869 Pictorials, First & Second Bureau Issues, Columbians, Trans-Mississippis, Graf Zeppelins and Officials are especially needed. Christopher can be counted on to provide collectors with trusted and competent advice. Collectors deserve to receive the full market-value for their philatelic collections. Christopher Rupp will work, on your behalf, to achieve your philatelic and financial objectives.