The NOVA Scroll Chuck was the first 4-jaw, self-centering chuck with circular jaws produced for woodturning. It was released in 1988 and became the standard to which current chucks are based off.
It was sold in the following markets: New Zealand, Australia, United States, Canada.
In 2009 The NOVA Scroll Chuck was included by Wood Magazine in their best 25 innovations of the past 25 years.
The attached files is the manual for the NOVA Scroll Chuck.
Thank you and happy Turning