Hollow, Michael

I have some questions about this barrel:
1. What is the calibre of this gun?
2. I saw some brands on this weapon. It would be desirable to consider them more in detail if it is possible
3. How does the barrel connected with stock?
4. Was the barrel painted or not?
5. What is the strange metall tip at the ramrod?
6. was the stock been impregnated by something or not? For example, linen oil
7. How does it dated?
With the best regards, Alexander!