Would like to find price and mintage figures on 19th century crowns from El Salvador and Colombia and other latin countries-- THANKS in advance

Your best bet is to get a second hand Krause to find out the value and mintage of such coins. I don't think there are many websites that specialize on such areas.

For a rough idea of prices, you can do a search on ebay and see how much people are willing to pay for.

Check out the local library for the Krause book. Even the lowly Crestline Library had a copy.

You're right, there aren't many. But there is one, I posted it here some weeks ago - Click Here