WESTERN AUSTRALIA SG 004c
1855 (Oct) 1/- Pale brown Top Margin Block of 12 4 x 3, Unused No Gum, Margins all sides. Top Margin Reversed POST wmk, Pos, 5-8/25-28/45-48 Position 27 with flawed N of Shilling, and 45 line through A of POSTAGE.
Very Rare, The only Known Larger block is a Block of 15.
WMK Swan sideways