View documents (IIIF viewer) (7 documents / 4 available on the web) View documents (DFG viewer)
Country/geo | Orient |
Subject | Postal services, telegraphy and telephony, technical |
superordinated | Postal services, telegraphy and telephony |
URI | https://pm20.zbw.eu/folder/sh/140902,145675 |
ID | sh/140902,145675 |