R18c,  3 Cent,  PROPRIETARY,  Used, Major faults,  All Considered in the Price.       Stamps will be sent Securely in a Reinforced Flat Mailer,  by U.S.P.S.   Please View the Mailing Costs. You can Save on your Postage with Multiple Lot Purchases. Just Request an Invoice for any Multiple Lot Purchase and Wait for a Combined Postage Invoice Before Submitting Payment. Foreign Mailing May Require REGISTERED Mailing Costs.  Please View my other Singles and Sheets listed in my Ebay Store. Also, take some time to check out my other U.S. & Foreign Stamps, First Day Covers, Picture Postcards, Proofcards, Coins and Currency, and Sports & Non-Sports Cards. Thank you for Viewing this Lot.