I'm fairly certain the bronze was strictly a desk ornament, great detail to this one.
That is a very powerful view of the Feldherrnhalle, I hope Erich gets to see this one, it's a beauty!
Methinks the graphic is photographic in nature, possibly a darker, sepia-tone type of process? The images and perspective look perfect and the heavy "curtain-rod" (?) structure was left in the image, something most artists might have normally left out in a drawing or painting due to aesthetics, no?
You might be able to have that card enlarged just a bit, which would make for an outstanding bit of artwork to hang in the collecting room.
