Only a couple of Hydrangea items seen have a period 1 backstamp style and therefore the pattern is useful in helping to determine the date of when Crown Ducal changed backstamp style. It is not possible to be precise with dates, but all the evidence suggests this changeover must have occurred around the end of 1934.
The Hydrangea pattern was probably very popular from the number of items seen today, but perhaps not for an extended length of time since it very rarely seen on the new release of shapes that were introduced in 1936. The application of the design appears uniform, but clearly the decorators, both tube-liners and paintresses used a free hand. It is quite easy to spot differences in the texture of the stems, the number and positioning of flowers and their sequence of pink and mauve colours.