1930 "Zeppelin 1930" - sheet of 100, position 86 showing "1830" error, also additional small varieties of the overprint, n.h., some usual wrinkles and perf. separations, v.f. and scarce sheet, one of very few (if any) remaining intact, signed J.Olama, with Mikulski certificate, ** Catalog #C1,1a Catalog Value $25,525