1794/5 Flowing hair silver/copper dollar. $10,000,000
1909
A 1909-S VDB penny!
The rarest British Penny would be the 1954 Penny. There is one known to exist, maybe two, but there could be some doubt about the second.
The rarest and most valuable Lincoln cent that isn't an error is the 1909-S with VDB on it. The rarest and most valuable error Lincoln cent is the 1943 copper penny.
Indian head penny
$0.01.Some rare ones might be worth more, but except for the very rarest, not a LOT more.
Indian head penny
The 1909-S VDB is the rarest and most valuable Lincoln cent that exists, and is worth no less than $500, and the value increases with better condition.
If you refer to general circulation Australian Pennies rather than Proof coins, the order runs something like this - 1. 1930 Penny is the rarest 2. 1920 Penny with no dots on the reverse 3. 1925 Penny 4. 1946 Penny
Only the Philadelphia mint made pennies in 1900. There isn't really a rarest.
1909 s vbd
1865 would make it an early Indian head penny, not a Lincoln wheat penny. It's not the rarest of dates. In worn condition it's worth around $10, and in uncirculated condition it's worth a little over $100.