$100 NCR appears as a paper bill similar to a US $100 bill. It features a picture of President Tandi on the face of the bill and the scene of the 'Dayglow Incorporation Address' on the back.
As with any form of currency in Fallout: New Vegas, $100 NCR is not affected by the player's Barter skill. The currency will always be valued at 40 caps, regardless of whether the player is buying or selling.
Casinos will exchange poker chips for any denomination of currency desired, including this one.
Dropping a stack of 33,000 or more $100 NCR bills breaks the game's 16-bit (4-hex) string used to store a number of items. This results in a stack of -32,000 $100 NCR bills which will disappear from the player's inventory when picked up.
A cut version of $100 NCR exists in New Vegas' resources. It is a non-currency item, meaning its price is affected by the player's Barter skill. It is otherwise identical to the normal currency version.