If I recall, it was originally sold at an Ontario auction of full autos.
It is a nice piece, but not sure it is $400 nice. I believe the market may agree with me as it has been for sale there for about 2 or 3 years now. But there are those with more money than time, so no doubt it will eventually go.
http://www.collectorssource.com/rifl...n-carrier.html