Here is a complete sheet of 4 airmail labels from Italian colonies. It's unlisted sheet in catalog as there is another sheet of 8 labels.
Year: 1933, Ungummed. Günter Mair's catalogue no: - ITC-C-1, imperforated, vertical strips of 8
with 1 pair tête-bêche, ref.: "I-33-XI.", issued for Italian Somaliland, black/pink, 5*****