By 1974, all the streetcars had been replaced by buses. While this progression is typical for American cities, many European cities have kept that streetcars, if at reduced levels. But Aachen, like many American cities, started looking at re-introducing streetcars. They looked at it in the 1990s, but plans stalled. Now it's being considered again. Stay tuned.
Here's the back of the card, sent from Maximillian Joesten in Aachen to Eugene Bloesch in San Francisco on August 30th, 1908. Eugene Bloesch corresponded with a number of postcard collectors. Whenever possible, they put the postage on the picture side. I think it adds something special to the card.
Here's the back of the card.
The message says:
Heartfelt greetings from afar!! M Joesten
I'm not sure what's written under the signature.
Here's another Eugene Bloesch postcard with the stamp on the front.