I couldn't resist any longer.. order in with P&D! Everything I read about these makes it impossible to resist.
onurb, I am interested in the official response from your question and I think North Sylva is best positioned to answer, but during my research I found this thread comparing 452 and 455 American's with good images and they also have the same double serial markings on the receiver and barrel. This leads me to believe it's not something isolated to Canadian models or imports into Canada - htt p://www.czfirearms.us/index.php?topic=32042.0