1918 1/2d Pale Dull Green stamp from the  King George V sideface definitive stamp issue, Large Multiple Crown/ A watermark, perforations 14.25 x 14.  CV of ~$10

The stamp is in fine condition, with bright, sharp colour, centred to top right and great perforations, as per the first scan.  

The stamp is in mint, lightly hinged condition. 

Reverse side is as per the second scan. Very clean, smooth, whitish and glossy gum, with minor hinge remainder.