Nice collection, I dig the rustication on the first pipe.
The cob is great, I assume you dont smoke it but I imagine I could clean it up for you and restore it to smokable condition if you wanted me to give it a shot.
I've been working on restoring a few old used cobs (that are practically useless otherwise).
The biggest trick is using a negative ion generator to obliterate the ghosts that never seem to leave a cob otherwise. The negative Ions attach to, and completely neutralize the molecules that cause odor (as well as sanitizing the pipe. Pretty cool, and its worked well on the estate pipes I've used it on.