Lot
2004 
1981, 20¢ Cactus, dark brown & dark brown engraved omitted. Left margin se-tenant block of 4, o.g., never hinged, from the discovery sheet, Very Fine, an extremely rare error with only 5 blocks in existence. Scott No. 1945a var Estimate $4,000 - 6,000.
Realized: $2,400