Judy Pay is the owner of this Australian built, by Commonwealth Aircraft Corporation, CAC CA-18 MK 21, Mustang, RAAF ID A68-105. Australian registered VH-JUC, painted as 3 Squadron RAAF P-51D flown by SQLDR Murray ‘Gasher’ Nash, DSO, DFC and Bar, in the Italian campaign of WWII
History of this aircraft here http://www.mustangsmustangs.com/p-51/survivors/serial/A68-105