Manufacturer and Builder/Volume 1/Issue 12/A New Thing in Postage
The Austrian government has introduced a novelty in postage, which might be introduced with great benefit in all countries. The object is to enable persons to send off; with the least possible trouble, messages of small importance, without the trouble of obtaining paper, pens, and envelopes. Cards of a fixed size are sold at all the post-offices for two kreutzers, one side being for the address and the other for this note, which may be written either with ink or with any kind of pencil. It is thrown into the box, and delivered without envelopes. A halfpenny post of this kind would certainly be very convenient, especially in large towns, and a man of business carrying a few such cards in his pocket-book would find them very useful. There is an additional advantage attaching to the card, namely, that of having the address and postmark inseparably fixed to the note.