Since 1900 isn't a rare date for Morgan dollars it's not highly counterfeited. The best thing to do would be to take it to a local coin collector and get their opinion. They'll be able to give a better answer they can see the coin.
according to my source, no dollar coins were struck from 1805 to 1835. check with pro. coin dealer to see if it is counterfeit.
Check that coin again, because what you're describing doesn't actually exist. There were no silver dollars minted that year, and the Walking Liberty design (on the half dollar) wasn't introduced for another decade.
The U.S. did not issue silver dollars in 1876. Does your coin say "Trade Dollar" on the reverse side? If so, please see the Related Question. If it does not say "Trade Dollar", either the date is not 1876 or you have a counterfeit. There has been a flood of counterfeit dollar coins in the last 20 years, some good enough to fool experienced collectors and some really bad, with impossible dates and designs. I'd strongly suggest having it examined in person by a dealer.
You didn't specify whether it's a silver dollar or a gold dollar; both types were minted in 1852. If it's a silver dollar with that date it should be checked by a dealer to make sure it's not counterfeit. 1852 is a scarce date for Seated Liberty dollars and there are many fakes on the market. If it's a gold dollar, please see the Related Question for specific information.
The U.S. did not strike any silver dollars with that date. The only dollar-type coins issued that year were Trade Dollars. See http://www.numismedia.com/fmv/prices/trddlr/pricesgd.shtml for a price guide. If your coin does not have the words "Trade Dollar" on the reverse I'm afraid that it is a fantasy piece or possibly an outright counterfeit.
See the related link below for a picture of the 1880 silver dollar.
One was sold for over $3 million dollars recently. However the vast, vast, vast, vast majority of 1804 silver dollars are reproductions or counterfeits. There are only a handful of "genuine" 1804 silver dollars known, if you believe you have one, you should take it to an expert because chances are, it is counterfeit/a reproduction. The 1804 silver dollar is worth a lot because it came into existence because of a bookkeeping error rather than a genuine coin. But if you see one "in the wild" it is probably either a counterfeit or reproduction.
See related answers.
That depends on what silver dollar you're talking about. See the related links below for pictures of different US silver dollars.
The 1900 Philadelphia issue Morgan is a common coin, average retail values for circulated coins is $23.00 to $32.00. Mint State coins are $35.00 and higher depending on the grade.
It's called a silver certificate rather than a paper silver dollar. Please see the Related Question.
1836 U.S. Silver Dollar type this into your search box and click on images to see one.