U.S.A. (1981) US architecture. Horizontal misperforation in zip block of 4 causing the tops of the buildings to appear at the bottom. Scott Nos 1928-31, Yvert Nos 1344-7.
AVAILABLE AT $75
U.S.A. (1982) Illinois Institute of Technology by van der Rohe*. Horizontal misperforation causing the value to appear at the top. Scott No 2020.
AVAILABLE AT $25
U.S.A. (1982) Gropius house*. Horizontal misperforation causing the value to appear at the top. Scott No 2021.
AVAILABLE AT $25
U.S.A. (1973) Jefferson Memorial* and signature*. Scott No 1510. Yvert No 1008. Perforation shift. The inscription of the country name and face value now appear on the top. **. Hard to find!
AVAILABLE AT $15
U.S.A. (1973) Jefferson Memorial* and signature*. Scott No 1520. Yvert No 1008a. Perforation shift and miscut in coil pair. **. Superb!
AVAILABLE AT $40
U.S.A. (1973) Jefferson Memorial* and signature*. Scott No 1520. Yvert No 1008a. Superb error: miscut and imperforate coil pair. **. Unlike France, the United States does not intentionally print imperforates for each issue.
AVAILABLE AT $65