Color is not claimed as a feature of the mark.
The mark consists of a stylized oval with the words "National Storage Centers", with each word stacked and centered with each other. The words "National" and "Centers" are in the font Lionel Train, all caps, located at the top and bottom (respectivley) of the logo. The word "Storage" is in Futura font, follows a curved line starting from the lower left to the upper right of the oval. The size of the word is bigger, starting with the "S" curving to the right, with the last letter "E" approximately 50% of the size of the "S".