Hello,
Edit
The aircraft is a an Engineering Division USD-9A.
Currently on ebay is a unusually coloured DH.4 seemingly undergoing evaluation with the serial P43 at:
https://www.ebay.it/itm/Militare-Bip...YAAOSwlh1cp0VM
Can anyone advise whether this is a US built DH.4 or an original Airco. Also has anyone any idea why the machine is so strikingly coloured?
Regards,
Clint