Please look at the coin again, no 1902 Morgans exist with CC mintmarks, the last year was 1893.
About $27.
About $150.
42cents
"DO" isn't a mint mark. The mint mark on a silver dollar for that year is on the reverse (tails) side, just above the letters "do" in the word "dollar."
One Dollar
about $25 depending on condition and mint mark
If the coin has any wear the value is for the silver, about $8.50
They are still found in circulation, have no silver and are only face value
Sorry, but there is no such dollar. All silver dollars issued in the period 1878-1921 carried an image of the head of Miss Liberty. They're usually called "Morgan" dollars after George T. Morgan, who designed the coin. In 1902 Morgan dollars were struck at 3 mints. Coins from Philadelphia (no mint mark) and New Orleans ("O" mint mark) both range in retail value from $15 to $25 depending on condition. 1902 dollars from San Francisco ("S") average about 2.5 times the values of the other two.
$15 to $20 depending on condition and variety.
Post new question with The Mintmark please.
If the coin shows any wear, value is for the silver at about $6.00