Looks like the forestock may have been damaged, was removed and a nosecap installed. I can't tell for certain, but there appears to be no evidence of ramrod pipes on the barrel. You may be able to see where the soldered lugs were once attached to the barrel and used to pin the forestock to the barrel.
While I've never done it, this looks like it would be a great candidate for restoration - new forestock, pipes, rammer and rebuilding the lock, would return it to its former state. Now whether it should be fired, that is a question for a professional...