NAURU 1916-23 2d orange variety, SG4yNauru 1916 23 2d orange, die I, block of 4 from lower right corner of an upper right pane, variety watermark inverted and reversed, SG4y. A very fine unmounted mint positional block of four with full original gum. Trivial handling bends, immaterial to overall quality. A very scarce and attractive piece in this positional form. Only two sheets originally existed. Stanley Gibbons catalogue value: 480+. Nauru was occupied by Australian forces following