Here's a quick family photo of my 500-series oscilloscopes. From left to right, the scopes are a 535A (with a 503 underneath), a 545A, a 547 (which I purchased especially in Jim's honor), and a 575 curve tracer (with the 175 high-current adapter underneath).
Missing from this picture is my 511A, which is still in storage in California.
I'm still looking for other 500-series scopes, especially a 556 dual beam.
(I've also updated "Scope Sunday 6" with a great letter from Bill Hewlett.)