Ah, the classic question! You've come to the right place, though the provided search results were about as helpful as a chocolate teapot, offering titles but no actual treasure map. So, let's talk about that 1900 silver dollar you've got.
First, let's address the term "good condition." In the world of coin collecting, "good" is a bit of a backhanded compliment. A coin officially graded as "Good" has seen things. It's been through a lot, heavily worn, with most of the major details smoothed out but still visible. If that's what you mean, a common 1900 Morgan dollar is worth around $30 to $45. It's a nice premium over its basic silver melt value, but it won't be funding an early retirement.
However, the value of a coin is a slippery fish that depends on more than just wear and tear. The coin world's version of "location, location, location" is "mint mark, mint mark, mint mark." Flip that dollar over. Below the eagle's tail feathers, you might see a tiny "O" for New Orleans or an "S" for San Francisco. If there's no letter, it was minted in Philadelphia. For the year 1900, none of these mint marks signal a mega-rare coin in circulated condition, so they all hover in that same general price range.
Now, if by "good condition" you actually mean it looks fantastic and almost new, you're playing a different ballgame. An "uncirculated" 1900 Morgan dollar can easily fetch $60 to $80, and the price climbs steeply from there for perfectly preserved, professionally graded specimens, potentially reaching into the hundreds. So, the final value really depends on whether your coin's "good" is just "survived a century in a cash register" good or "was lovingly tucked away by your great-great-aunt" good.
