Following the now usual practice these stamps do not have value indication, in other words following changes in tariffs, they can be used flexibly in the category indicated without any supplementary postage fee being payable. My Message Stamp III – Doorknockers: On the sheets containing twenty or thirty-five stamps there are ten various doorknockers shown. The special feature of the sheets is that differing from the usual format the label suitable for personalisation is located underneath the stamp itself.