Art is framed, Art measures 7x5 and is in a 10 1/2 x 12 1/2 inch frame.

Bronx New York artist Kevin Santos who goes by the street tag names Nac, Nac143 and Nak.

The artist is originally from the Boogie Down Bronx and has been doing graffiti art and tagging since the late 1970s.

There is a lot of great info from Subway Outlaws on Nac.

He is a listed artist on the Museum of the City of New York.

Past auction results listed on Blouin art sales as Nak 143.