US Banknotes

The current $2 bill features John Trumbull's painting "Declaration of Independence."

The very first US $2 bill was issued in 1862, and it featured a picture of Alexander Hamilton.

If they're modern bills, they're worth face value.

That is a US Note, and fairly common. In good condition, they are worth about $2.50.

It's worth exactly $20.

If you mean the series number, there were several valid series of US dollar bills in that time frame. Specifically:

Series 1999
Series 2001
Series 2003
Series 2003A
Series 2006

There were also Series 2004, 2004A, and 2006A, but those were only issued in some denominations ($20 and $50 notes for 2004; $10, $20, and $50 notes for 2004A; $100 notes for 2006A). There was also a Series 2009, but I'm not sure that those were actually released IN 2009.

In perfect uncirculated condition it is worth $6.

In normal used condition is is worth exactly $2.

No, all US bills regardless of denomination are the same size. This makes them easier to handle by machines.

Washington DC, with a second printing facility in Fort Worth, Texas.

Since the 1960s, the largest bill still in use is $100. Nothing larger has been printed since the 1940s.

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The exact value depends on condition and Federal Reserve district (indicated by the letter to the left of Washington's portrait), but on average, one is worth around $15-25. The lack of "In God We Trust" isn't a mistake or anything special, as the phrase wasn't found on any bill until the 1957 $1.

It is worth two dollars.

It's worth maybe $10 in average condition, unless it's a brown seal Hawaiian note, which is worth at least $25. About it not saying "In God We Trust," the phrase wasn't added to currency until the 1950s.

15-cent fractional bills were issued during the Civil War. Assuming your bill has the text "Approved March 3d 1863 - Fractional Currency - United States Fifteen Cents" and "National Bank Note Co New York" on the front, the bill should be examined in person by a dealer or appraiser who handles fractional currency. This bill was printed in four different varieties and retail values as of 05/2016 can range anywhere from $25 to almost $400.

It's not possible to provide an estimate without a more-detailed description of the bill. While $1 star notes generally don't carry a high premium, its value could be higher depending on the nature of the error. Because your bill has two separate factors that could affect its price, it might be worthwhile to have it inspected in person by a dealer or appraiser who works with error currency.

It's still worth exactly two dollars.

The US is unusual in its low use of the $2 bill. Equivalent bills - and now coins - are in common use in Canada, the UK, Australia, the EU, and other countries. The situation in the US, though, is tangled up in a story of social morés and mythology.

When the federal government first starting printing paper money during the Civil War, $2 bills were nothing unusual. They were printed just like other bills, and met a need for change-making as a convenient denomination in between $1 and $5. However by the late 19th century, the bills found a special niche at racetracks where $2 was the standard bet. Worse yet they were also the currency of choice at brothels as the going rate for, uh, "services" in those pre-inflation days. Many people stopped using $2 bills because they were afraid someone might think they'd been frequenting one or both of those unsavory venues.

In some more-superstitious parts of the country that distaste eventually morphed into a belief that the bills themselves were somehow tainted by their association with vice. Simply touching one was thought to expose a person to contamination. The myth was further compounded by the slang term "deuce" (referring to the denomination) which was taken by many as a reference to the devil. Together those beliefs culminated in the practice of "draining evil" out of $2 bills by tearing off one corner and hanging them up like a washcloth!

The Treasury itself contributed to reduced use by its 1928 decision to print all $2 bills as a form of currency called United States Notes. US Notes, now obsolete, were issued directly by the government rather than through the Federal Reserve Bank and had red seals and serial numbers rather than the familiar green ink. Even people who knew there was no such thing as a "curse" on the denomination still tended to hoard $2 bills because of their unusual appearance.

Circulation dropped to the point that printing was temporarily suspended in the 1960s. The Treasury resumed production in time for the 1976 Bicentennial; this time the bills were standard green-seal Federal Reserve Notes and featured redesigned the reverse side that depicted the signing of the Declaration of Independence. It was hoped that the new design would make the bills circulate more widely but instead, they too were hoarded as curiosities despite being available in huge quantities. During the 1950s and 1960s people had become accustomed to using multiple $1 bills in commerce and cash registers were being made without a $2 slot, so lack of use became a circular problem. It got to the point where younger cashiers didn't even recognize the denomination, leading to a number of infamous cases where people trying to spend $2 bills were accused of counterfeiting.

Despite all of these obstacles the denomination still continues to circulate at a low level. In fact demand has picked up somewhat during the first part of the 2010 decade. As of this writing the Treasury has printed more $2 bills on a more-regular schedule that it has in about the previous 15 years. The "why" isn't completely clear; it's thought some of the increase in demand is due to inflation and some due to the bills' use by various groups as a way of pointing out their purchasing clout, but no definite reason has been identified.

Face value.

The value of a 2003 $10 bill is typically its face value of $10 if it's in circulation and in average condition. However, if the bill is in uncirculated condition or has unique features such as a rare serial number, it could be worth more to collectors. Always check with a currency dealer or collector for a precise valuation based on its condition and market demand.

1995 $10 bills are very common among collectors. In average condition it has no added value. A nice uncirculated one might retail for all of $11.

On Series 2004 and later bills, the security strip is located on the left side of the bill about halfway between the edge and the Federal Reserve seal. It glows green under UV light.

No. Never. It is printed in bills in seven denominations: $1, $2, $5, $10, $20, $50, and $100.
Previously there have also been five larger denominations: $500, $1,000, $5,000, and $10,000
were printed for general use (in large transactions), and a $100,000 bill for certain internal transactions.