Do The Hustle was released by Realm Records in 1976. Both volumes feature ITC Neon on the cover. From the liner notes to the second installment:
This 3 record album was conceived and produced by the Hustle Factory. Incorporated of New York, a company nationally involved in the discotheques, disco dance studios and disco entertainment. The Hustle Factory was among the first to recognize the beginnings of a whole new dance revolution. It was on the scene to help further the Hustle Craze and the public’s desire to get involved with the new dances.
More info about Vol. 1 and Vol. 2 on Discogs.