NAURU 1916-23 3d bluish violet variety, SG7bNauru 1916 23 3d bluish violet, type 1 overprint, DOUBLE OVERPRINT ONE ALBINO (with the albino impresion mm to left of inked overprint and detectable from face), SG7b. A fine mint example with original gum. Only one pane originally existed, from 'I16' printing, and very scarce. Provenance: Ex Keith Buckingham (Grosvenor 28 2 2006, lot 823). Nauru was occupied by Australian forces following the outbreak of World War I. During this time, Australian