1870, 7¢ vermilion + 1¢ ultramarine. Tied by grid canceled on small 1875 cover to Huy, Belgium, indistinct origin and red "New York, Paid All, Br. Transit" exchange cds, receiving backstamp, light edge toning at left, otherwise F.-V.F. Scott No. 149+156  Estimate $300 - 400. $0 (Image)