No it has nothing else inside with no extra holes. I don't know if I can sell it...I mean that is a decent amount of money but the drum is beautiful. I also personally think it looks better than the early 20s ones I've seen and the later 30s ones. Course that is probably me now figuring out what I have....
See what I mean abut parting with one ? Don`t clean it if you have no experience with fragile drums.
If you must,...Nothing more than a slightly moistened gun oil rag. Even if you disassemble it.