That's a cute stamp. Groovy Peter Max style. I date from that era: the era when they first introduced zip codes, and when that kind of graphics was in, and from when stamps were only ten cents. Lol! But I don't remember that particular stamp.
Used to collect stamps. Can be quite fun.
My favorite country in my stamp album was Germany because you can trace its history in its stamps.
They had nondescript stamps in the Twenties, but then you see the hyperinflation of the Wiemar Republic in the late Twenties.
No pictures. Just nice regal designs built around numbers. You see red or blue stamps for "200 marks", and for "400 marks" ( a mark is usually similar to a shilling or a US quarter in value). Then you start seeing prices in the multiples of "tausend" . And then in the millions. I had stamps with 25 million, and 50 million marks. And apparently sometimes they even recycled stamps before they left the print shop: an earlier style red "200 mark" stamp will have "five tausend" stamped over the original design in black ink, and in heavy Germanic letters.
That ends. But then came the Thirties,and the war years, and you see stamps with swastikas, and other stamps with portraits of Hitler.
Then came the post war/Cold War era with Germany now split into two countries (east and west).
The West German stamps of the Fifties and Sixties were rather nondescript and forgettable to look at. But Communist East Germany had some rather breathtaking looking stamps. I particularly like the series they did on fossils found at the famous slate quarry in Germany (archaeopteryx and like that). Cool pics of fossil creatures.
I stopped actively collecting stamps in the Seventies. Don't know much the later stamps of the two Germanies, nor about the now reunified Germany and its stamps.