Issued by Deutsche Bundespost in 1988, this striking Europa (CEPT) stamp celebrates the advent of the ISDN (Integrated Services Digital Network)—a milestone in telecommunications. The design features four colored lines (red, yellow, green, blue) symbolizing the simultaneous transmission of speech (Sprache), text, image (Bild), and data (Daten). These converge into a unified network, representing ISDN’s ability to integrate diverse communication forms. The minimalist design effectively captures late-1980s optimism for digital connectivity across Europe.

Country: Germany (Federal Republic of Germany – Deutsche Bundespost)
Year of Issue: 1988
Denomination: 80 Pfennig
Series: Europa – CEPT (European Telecommunications)
Theme: Telecommunications and Digital Networks
Designer: Likely issued as part of CEPT’s 1988 theme “Telecommunications and Europe”