History on this Canadian Dart Swinger 340 Special

This is a real shoot in the dark everyone but I thought since I have no history on my car from before I bought it in the late 70's as a teenager maybe someone, most likely someone in western Canada, might recognize it and be able to fill in the some blanks. I purchased it in Edmonton Alberta in 1978 as a "repo" for my first car. It was originally purchased new from Pembina Motors in Manitoba (thanks Cliff Guinand for that history). These are the only pictures I have of it way back then. Any help would be much appreciated. Thanks Dan

Well almost six years since this post started, but I would still like to know how you think you have a 340 'Special' when all my info seems to indicate that the only Special (Swingers) were Slant-6 or 318 cars. In 1971, the (340) Swinger was replaced by the Demon 340, but supposedly there were 5 Swinger 340's Known to exist in '71 and 3 known for '72. At least, this is according to Galen Govier.
Could you (or anyone else claiming to own a factory 340 Special car, please post the first six digits of S.N.
The fifth digit must be an 'H' (to be any 340 car)