O9 var (O4) 1899 ½d black Q Victoria, rose/magenta O.P.S.O. overprint, perf 10x11, wmkd NZ and Star 7mm apart (SG Type W 12b), short perfs at top, this is position 1 on the RPSL certificate for the block of four (photocopy included) which we split, ex-Rubin.
