France, 1850, 25c light blue on bluish, block of 4. Canceled by diamond grid cancels on cover to Mont Richard, "Paris, 27 Dec, 51" cds and receiving backstamp; top left stamp with tear at top, otherwise F.-V.F., a very rare First Issue multiple on cover. Scott No. 6. Maury No. 4; €11,500 ($15,755)  Estimate $3,000 - 4,000. $0 (Image)