Still current on the US register with a certificate that expires in March 2028.

The sign says: Mooney Mustang "Spirit of Texas", Non-Stop New York Paris, 13 hr 10, 23 May 1967, Pilot: (Carl Richard?), 23 yrs, Student at the Texas Christian University.

Mooney's Mustang demonstrator on display at the 1967 Paris Air Salon, having arrived that morning non-stop from New York in 13 hours 10 minutes flying time. Only 36 were built of this enlarged and pressurised 5-seat development of the Mooney M-20. (Data from R.W.Simpson, General Aviation Handbook, 2005).

Built in 1968 this was the Mooney Company's first attempt at a pressurised single engined aircraft. They were sold at a loss leading to the bankruptcy of the company. Very few survive and this example was cancelled from the US register in 2002 as sold in Australia.

Much top my surprise, this aircraft is still active in the USA

The Mooney Mustang was the first pressurized single engine piston to be certified. It was sold for less than the cost to produce and fewer than 40 were built.