Michael,
Ok, I'll post a few pictures. The engine I'm rebuilding was pretty filthy - lots of rust and oil. The distributor was no exception. Oil was in the vacuum advance diaphragm and the ignition advance mechanism was pretty rusty.
Disassembly is relatively straightforward (now that I have it apart - it wasn't obvious, tho). Other than taking a few pictures of the ignition advance mechanism before I took it apart (to make sure I put it back together the same way), I didn't document the disassembly process. I have since cleaned and bead-blasted all the parts and will be putting it back together this weekend. Other than a couple washers I lost, I don't think I'll need to replace any parts of it. Even the plastic bushings and guides in the ignition advance were not worn excessively.
Here's a couple pictures of the ignition advance assy before I took it apart.
What I am holding in my hand is the distributor shaft that has been removed from the housing.
I'll describe how I disassembled it later this weekend.