There are a few coin collectors group here in the country. Widely known are the three most active: PNAS, BCCI and BNSP. I tried to attend most of the auctions conducted by these people and manages to bring home a few coins I am lucky enough to get. What I find hard is to have some way to contact them. After each auction, I want to ask a lot of questions but I do not know anyone to address it to.

when you go to the auctions, ask the dealers there for their contact numbers. most if not all have their own dealerships to run but they are very helpful and are willing to help you with any inquiries you might have if you call up their shops.

alternatively, im sure you can post any questions you might have here and someone will be able to answer them