The 1866 Queen Victoria Official Issue – Without Watermark
On 1 August 1866 the first set of Official Stamps was issued by the Indian Post Office consisting of 3 values – ½a, 1a and 8as – printed on the 1856-1864 QV issue without watermark and 4 values – ½a, 1a, 2as and 4as – printed on the 1865-1866 QV issues with watermark.
The 1866 Queen Victoria Official Issue – With Watermark
On 1 August 1866 the first set of Official Stamps was issued by the Indian Post Office consisting of 3 values – ½a, 1a and 8as – printed on the 1856-1864 QV issue without watermark and 4 values – ½a, 1a, 2as and 4as – printed on the 1865-1866 QV issues with watermark.