"OS" in Black on 1890 Queen
Victoria 1p Violet on Cream or Buff postal card.
"SPECIMEN"
on 1p Violet on Buff and smooth card stock.
"SPECIMEN"
on 1p Pale Violet on Buff and rough card stock.
Both with perfectly formed
"O" and "S".
For
use by the New South Wales Government Railways. Form
4a 599-91 Buff card, with oval “O”
and perfectly formed “S” in “OS”. Cancelled but unused.
1891, JUNE 5: SYDNEY
to SHIRLMERE Cream card with round “O”
and perfectly formed “S” in “OS”.