Lot
986 
Airmail, 1938, 6¢ Eagle, ultramarine & carmine color error, top margin plate block of 4 with two plate numbers and "Top", o.g., never hinged, rich colors with distinctive bold ultramarine shade, bright and fresh, Very Fine, very scarce; each stamp signed Bloch, with 2001 P.S.E. certificate. Scott No. C23c $1,750.
Realized: $1,600