I made an email inquiry to Stan Piteau and received a reply which I'm posting below:
Sorry, but don't have much on s/n 445. It is an LFA.
It was registered in Chile March 1, 1943 as CC-ACZ-308.
Apparently registered as CC-JSY-308 August 22, 1945.
Became registered as CC-PSY December 31, 1945.
Registered as CC-PDB January 20, 1965.
Photos still show CC-PDB on the aircraft, however I understand the this registration was later on Cessna 182L, c/n 58653 or at least was as of January 2002.
The aircraft has been at the museum at least since March of 1996. This, mind you is not first hand information but was relayed to me by a visitor to Chile.
Quite a number of Cadets were exported to Mexico and South America directly from the factory which can explain some of the gaps where I have been unable to match up serial numbers with the US registration numbers and do not know if in fact US registration numbers were assigned.
May your skies always be C. A. V. U.
Stan