SAN MARINO (1947) US stamps*. Flag*. Pair imperforate horizontally. Scott No 267, Yvert No 309.
AVAILABLE AT $30
U.S.A. (1973) Postrider* on horse* announcing mail arrival with bugle*. Scott No 1478. Yvert No 978. American Bicentennial: Colonial Communications issue. Dramatic shift of the color black in plate number block of 4 resulting in double image. **.
AVAILABLE AT $120
U.S.A. (1975) Military uniforms*. Bicentennial emblem*. Scott No 1565-8. Yvert No 1055-8. Impressive shift of the colors black and yellow in margin block resulting in double image of the soldiers. **.
AVAILABLE AT $90