Queen Victoria Postage Stamp-The 1878-Plate 16 Sixpence Definitive-Illustrated

Illustrated below is an example of the 1878 issue of the Queen Victoria definitive. In this issue the plate number was indicated in the circle at the corners of the lozenge shape surrounding the portrait. The issue still retained the earlier practice from the  Penny Red of  alphabetic letters in the corners of the stamp. the watermark was a spray of rose.