Three dollar bills exist but they were never issued by the US government, although the US issued a three dollar coin from 1854 to 1889. Earlier, some colonies printed three dollar bills. When banks were allowed to print money in the early days of the US, some printed legitimate, legal three dollar bills. The Confederacy also produced three dollar bills.
The first federally-issued $2 bills were printed in 1862. They were issued as United States Notes, a now-obsolete form of currency.
Yes. All US Dollar banknotes issued since 1861 are still valid.
Washington's portrait has been on all US $1 bills issued since the early 20th century.
As of July 2010 no series 2009 or 2010 $2 bills have been printed.
There were no series letters on 1929 bills, all of which were issued as National Currency bills. Please see the question "What is the value of a 1929 US 5 dollar bill?" for more information.
The first federally-issued $2 bills were printed in 1862. The denomination is still being printed, but not in large quantities. As of this writing the most recent printing was in 2012, although the bills carry a 2009 series date.
The US issued $1 bills and $1 coins with that date. Please see the Related Questions for more information.
There is no exact record of how many 10,000 dollar bills were made before they stopped being printed in 1945.
The last printing was in 1945. However these bills were issued as part of the 1934 series and they carried the series date 1934 A.
Yes, many millions of them. All US $2 bills were printed as red-seal US Notes from 1928 to 1963. Most $2 bills issued before that also had red seals but weren't necessarily US Notes.
Old US $1000 bills carried a portrait of President Grover Cleveland. Some privately-issued bills may have had a woman's portrait, though.