The face value of ANY bill or coin is simply another word for its denomination. Thus any $1 bill has a face value of a dollar, a $100 bill has a face value of one hundred dollars, and so on.
The collector value of a bill or coin can be very different, depending on a number of factors. For more information about a 1923 $1 bill please see the question "What is the value of a 1923 US 1 dollar bill?"
...the face value is $1.
Face value unless it is crisp and unfolded.
About $1.25. A dealer will only pay face value.
The value of a 1963 red seal two dollar bill is $1.00 to $1.25 more than face value if circulated. It is worth about $10.00 if uncirculated.
US 1974 $100 bills were only issued in one series so there were none printed with a letter after the date. Perhaps you're looking at the Federal Reserve District letter or a plate-position indicator. There's more information at the question "What is the value of a 1974 US 100 dollar bill?"
What is the value of a 1923 ONE DOLLAR DOMINION OF CANADA BILL. The serial numbers are printed in red. The letter D appears on the right and left side of face of the bill. The number 2 appears to the right of seal of the Department of Finance
...the face value is $1.
Face value only.
20.00 dollar bill 2 face
It is King George V. Ottawa
Since this bill is not rare and is circulated it is worth face value.
$100 $100
Face value unless it is crisp and unfolded.
It is worth face value unless it is uncirculated.
A 2 dollar bill with a star symbol on it will typically have a higher value to collectors than a regular 2 dollar bill. The value can vary depending on the condition of the bill and the demand from collectors, but it can be worth more than face value.
Face value only.
The image on the 1923 Peace Dollar is that of Lady Liberty.