Block of four, brilliant color and detailed impression, choice centering, each stamp neatly cancelled by town datestamp. ONE OF 2-3 USED BLOCKS KNOWN. Mint = With original gum. Unused = Stamp without any gum or regummed. WE WANT TO HAVE CLEAR AND DIRECT COMMUNICATION WITH ALL OF OUR CLIENTS. We review all best offers. Certain items, such as zeppelins and high denom notes, have very little profit margins leaving very little room for discounting. Offers within 5% of the asking price have the best chance of acceptance. Stamps and currency described with faults are NOT returnable. Obtaining certificates of authenticity. Stamps generic certificates from PSE, PSAG, APS, or the Philatelic Foundation are accepted. NOTE “graded” certificates or “encased” items are not accepted. Notes PCGS or PMG opinions are accepted. We guarantee our description, not a specific numeric grade. Proof of the inability of a competent authority to express an opinion is not grounds for return. We use the finest in secure packaging to better protect your items. Stamps & Bank Notes. The item “241, USED $1 BLOCK OF FOUR Ex TWIGG-SMITH PFC LB” is in sale since Wednesday, March 30, 2011. This item is in the category “Stamps\United States\19th Century\ Used”. The seller is “wmlangs” and is located in Hampton, NH. This item can be shipped to North, South, or Latin America, all countries in Europe, all countries in continental Asia, Australia.