Description
Heß, W., Improvements and simplifications in the field of postal services during the last decade, 3-part series of articles in: Archiv für Post und Telegraphie, No. 17-19, 1910, punched #64502
Heß, W., Improvements and simplifications in the field of postal services during the last decade, 3-part series of articles in: Archiv für Post und Telegraphie, No. 17-19, 1910, punched #64502