There were two. N13Y was originally N13A. It was fixed gear during the years up until about 1970. Skip Volk's N1114V was fixed gear and Art bought it after Skip was killed in his Pitts Special.
I'm putting together documentation on N1114V when it was Skip Volk's because he was a family friend and rented my parents hangar. I'll post what I find in the coming year.
Chris...