The US has never printed bills with silver-colored seals. Bills called silver certificates were issued with blue seals, which may be what you're thinking of.
Silver certificates were backed 1-for-1 with a dollar's worth of silver in the US Treasury. They were eliminated in the 1960s when the price of silver rose and it was no longer possible to back the bills with a fixed amount of metal.
There's no difference. All silver dollars minted in 1894 used the Morgan design, named for the famous designer George T. Morgan.
A Morgan dollar IS a silver dollar. The term Morgan refers to the designer George T. Morgan who created the images used from 1878 to 1904 and in 1921.
A silver dollar bill with a full ladder refers to the serial number on the bill either increasing or decreasing in numerical order. For example: A12345678 or A87654321.
There is no difference. They are the same coin but many people refer to them as "Liberty Dollars".
Replica coins are required to have the word "COPY" stamped on them somewhere.
Aside from the minor differences in design, the greatest difference between the US Trade Dollar and the Seated Liberty Dollar is the weight. The Liberty Seated Dollar weighs 26.73 grams while the US Trade Dollar weighs 27.22 grams. Both contained 90% silver and 10% copper altthough the Trade Dollar had slightly more silver in it. The Trade Dollar was issued primarily for circulation in the Orient while the Seated Liberty Dollar was issued for circulation in the USA.
If it has the CC mintmark it means it was made at the Carson City mint.
Generally speaking, the Carson City silver dollar will have a greater value than one minted elsewhere during the same time period.
The 1921 Chapman was a proof version of the Morgan Dollar. Very few were minted and because of this, they command a premium price.
The silver dollars retail value in extra fine condition on a 1881-CC is $200.00.
The 1884 Morgan Silver Dollar typically has a value of between $5 and $10 in normal condition, if they are sealed and mint comdition, the value could be as high as $30, again depending on the condition of the Dollar.
There's a set of pictures at the site under Related Links.