1.00
it cool
1794/5 Flowing hair silver/copper dollar
The most valuable American coin in current production is the half dollar. This half dollar is worth 50 cents when used.
It is worth 1.00 CAN. 23,156,000 were minted in that year, so unless it has a minting error it is only worth one dollar Canadian.
Please rephrase the question
1895
One Dollar bills with low serial numbers, such as 00000001 to 00000100, are sought after and can sell for up to $2,500 in mint, uncirculated condition. The most valuable One Dollar bill to date is the Rainbow Note, which was produced in 1869. It features a portrait of George Washington and a scene of Christopher Columbus discovering America. It is called a Rainbow Note because it was printed using multiple colors. The Rainbow Note One Dollar bill is valued at $4,500 in mint, uncirculated condition.
It is worth 25 cents, or one quarter of one dollar. 1966 is not old enough for the coin to have gotten valuable.
"Zimbabwe Dollar" no doubt
There's no such thing as a U.S. silver dollar coin from 1957.
The Australian One Dollar coin was first issued in 1984 and has not been around long enough to be either rare or valuable. These coins are still potentially in circulation so, unless they are part of a Proof or uncirculated mint set or are individual Proof or uncirculated coins and in absolute mint condition, they are worth One Dollar. An Australian 2000 One Dollar coin, uncirculated and in absolute mint condition could fetch up to $50 AUD. There were 7.592 million minted.
Yes, circulated two bills have been found to be more valuable. This is particularly talking about the two dollar bills (circulated) that are from around the 1900's.