Jim - I notice that you have one of these for sale on eBay. From thepictures, the baffle looks like it might have been modified, but its hard to tell whether its just an optical illusion.
I've been looking for one of these pieces to go for the "Plas" sound from time-to-time. Would you consider takeing an RPC 115B plus $75.00 in trade?
Hope all is well.
Bob Merrill