From the NYC Organ page: This one-manual positief organ was built for a lecture-demonstration given by Dirk A. Flentrop in a meeting room of the Waldorf-Astoria Hotel. Mr. Flentrop spoke on "Trends in European Organ-Building" and the organ was demonstrated by Mr. Donald Willing. The organ had six manual stops and pull-down pedals.

Kurt E. Röderer, then an employee of Flentrop Orgelbouw, installed the positief organ. Following the convention, the organ was sold to Fenner Douglas for his Oberlin, Ohio residence. Mr. Röderer moved the organ to Oberlin, and then decided to stay in the U.S. The Flentrop organ was later acquired by the Oberlin Conservatory of Music and is extant (with two added pedal stops) in Fairchild Chapel, as shown in the photo.

The organ has been relocated to Alexandria, Virginia.

Information received from Glendon Frank: This organ was built for the 1956 American Guild of Organist Convention - New York City. It was built for a lecture-demonstration given by Dirk A. Flentrop in a meeting room of the Waldorf-Astoria Hotel. Mr. Flentrop spoke on "Trends in European Organ-Building," and the organ was demonstrated by Mr. Donald Willing. The organ had pull-down pedals. Following the convention, the organ was sold to Fenner Douglas for his Oberlin, Ohio residence. Kurt Röderer, who had been a Flentrop employee, moved the organ to Oberlin, and then decided to stay in the U.S. The Flentrop organ was later acquired by the Oberlin Conservatory of Music and is extant (with two added pedal stops) in Fairchild Chapel. (Database Manager. 2015-08-10).