View documents (IIIF viewer) (4 documents / 4 available on the web) View documents (DFG viewer)
Country/geo | Eritrea |
Subject | Wireless telegraphy and telephony, radio |
superordinated | Postal services, telegraphy and telephony |
Signature | C126 : n34 Sm1 |
URI | http://purl.org/pressemappe20/folder/sh/141483,145663 |
ID | sh/141483,145663 |