The Stamps of the German Empire. E-book. Formato PDF Bertram W. H. Poole   -  Forgotten Books, 2017  - 

The Postal Administration sent in its report to the Government of the Grand Duchy on 2lst June, 1859, set ting forth the necessity of having fresh plates provided for printing the stamps, as those in use were worn out, and that the question had arisen whether the design should not be changed; that the present design was antiquated; that the printing on col ored paper was not clear, nor were the stamps safe from imitation; that it would be better that the stamps should be printed on white paper in colors according to their values, and, as was then done elsewhere, the country should be denoted by the head of its Sovereign or its Arms; and that in order to render the stamps perfect, secure from imitation, and their separation readier, they should be perforated as in England and France.