Pair of Signed Prints

Got this pair of signed prints from the 1970s. Label on back says they came from TMC-Chicago? The first picture is called "Spinoff" and is #86/500 and the second picture is called "Intesection" and is #42/500. It is kind of hard for me to make out the signature but it appears to say D Woodward?Does anybody know anything about this artist or these pieces? They are so cool and modern.