The coin looks good to me. I have seen the 3o'clock denticle 'mark' on 3 separate occasion. I think that is quite common for the 1911 Empire...
Hi Eduard, I will be visiting this dealer later. Will get the photos from him. Hopefully will be posting the pics up by the time you see this...
I know nuts about Spanish coins (im into chinese), but i certainly remember the OS. My dealer in Singapore got a same coin for sale a few months...
The chinese words on the reverse looks suspected to me. The fonts of the english words 'An-Hwei Province' and '7 mace 2 candareens' looks too stiff.
Separate names with a comma.