unused ½c-50c Presidentials (803-831), complete sheets of nos. 803-806, 809, 814, 825 and 828, half sheets with plate no. blocks of nos. 807-808, 810-813, 815-824, 826, 827 and 829-831, also two complete sets of singles, most never hinged, few small faults, otherwise fine-very fine, Scott retail approx. $2,000.00est.