This Prince O3 Black is an older model but James Willstrop has been using this recently, including at the 2012 US Open.
One great thing about this racket is it’s named the Prince O3 Black, but the racket is actually silver. Thanks for that, Prince.
Even though this racket is a few years old, you can still find it for sale. Here are some links.
Here’s James Willstrop in action, with this racket in hand.
Photo via usopensquash.com