This is the Blindman series $5 with the last prefix ND. Only 4 prefixes were ever issued, ie. NA - ND, for a short period of time, 1982-1985. Thus less than 40 million pieces were ever issued, what more UNC condition note after near 3 decades.
It's my opinion that one day, these $5 notes in UNC condition will be well sought after one day.