NAURU 1916-23 1½d red-brown, SG3Nauru 1916 23 1d red brown, type 1 overprint, lower left corner 'U23' control block of six (3x2), imperforate margin, SG3. A fine mint positional block with large part original gum. Four of the stamps are unmounted mint. The bottom right stamp has tiny tone speck on reverse, inconsequential as a very attractive positional multiple with very fresh colour. Scarce in this form and quality. Nauru was occupied by Australian forces following the outbreak of