1888 Centenary Issue (Carmine / Scarlet Red)
Released to commemorate 100 years since the founding of NSW.
Imprinted with “ONE HUNDRED YEARS” beneath “NEW SOUTH WALES POSTAGE”
OS Overprint set of four with upper border.
Stamps were overprinted with "OS" (“On Service”) for official government use
Common as individual stamps but very rare in Mint condition set of 4 with border overprinted OS.
