Mafia Island, 1915, 15h ultramarine, black overprint, bottom margin single, o.g., never hinged, bright and fresh, F.-V.F. Scott No. NL12 $675. SG No. M4A  £550 ($890). $0 (Image)

Mafia Island, 1915, 15h ultramarine, reddish violet overprint, o.g., never hinged, rich bright color, fresh and Very Fine; signed Hoffman Giesecke. Scott No. NL28 $250 for hinged. SG No. M4C  £170 ($280). $0 (Image)

Mafia Island, 1915, 20h orange & black on yellow, reddish violet overprint, o.g., never hinged, rich vibrant colors, Very Fine, scarce in never hinged condition; signed Hoffman Giesecke. Scott No. NL29 $500 for hinged. SG No. M5C  £325 ($530). $0 (Image)

Mafia Island, 1915, 2½h brown, reddish violet overprint, o.g., never hinged, well centered, bright and fresh, Extremely Fine, a premium never hinged single; signed Hoffman Giesecke. Scott No. NL25 $300 for hinged. SG No. M1C  £200 ($320). $0 (Image)

Mafia Island, 1915, 30h black & carmine, reddish violet overprint, o.g., never hinged, deep colors, very fresh, Very Fine; signed Hoffman Giesecke. Scott No. NL30 $550 for hinged. SG No. M6C  £400 ($650). $0 (Image)

Mafia Island, 1915, 45h purple & black, reddish violet overprint, o.g., never hinged, attractively centered amid wide margins, deep colors, Very Fine and choice, a lovely example of this scarce never hinged stamp; signed Hoffman Giesecke. Scott No. NL31 $675 for hinged. SG No. M7C  £500 ($810). $0 (Image)

Mafia Island, 1915, 4h green, deep purple overprint, o.g., never hinged, bright and fresh, Very Fine; signed Hoffman Giesecke. Scott No. NL26 $450 for hinged. SG No. M2C  £300 ($490). $0 (Image)

Mafia Island, 1915, 7½h carmine, black overprint, o.g., light creasing and small margin tear, Very Fine appearance; signed Hoffman Giesecke. Scott No. NL11 $625. SG No. M3A  £500 ($810). $0 (Image)

Mafia Island, 1915, 7½h carmine, reddish violet overprint, o.g., never hinged, bright color, very fresh, Very Fine; signed Hoffman Giesecke. Scott No. NL27 $150 for hinged. SG No. M3C  £100 ($160). $0 (Image)