Mainz Gutenberg Museum
Stamp: "Mainz Gutenberg Museum"
| Printed value | 20 Pfennige  |
Motif, Topic | Germany |
| Circulation | 30.000.000 | Valid until | December, 31 - 1966 |
| Published | September, 25 - 1964 | Design | Heinz Schillinger |
From the series: "Hauptstädte der Länder der Bundesrepublik Deutschland"