Believed to be SG11- 1852 Victoria State stamp, 3d Blue Queen Victoria half length, on imperf unwatermarked paper. By Thomas Ham. CV ~ $175

The stamp is in very good front condition, with 3 good/big margins, and one just cut into the design at top, as per the first scan. Nice part '2' numerical barred oval cancellation.

Back of the stamp as per the second scan. Very clean and sound paper with a small shallow thin at top and hinge removal mark.