[Raf]

All looks good to me. You are right , the brass rivets don't help it aesthetically and since they were presumably to secure the lining one wonders wether they were originally flushed rivets. Some domed steel rivets are modern but these things are to be expected as part of its history. Given the fact that there are rather a lot of holes in odd places one wonders if at some time it had an attached fabric cover.