Interesting. My Canadian built (Ste Therese plant) 1971 Pontiac still got an Imperial cluster. Didn't think metric clusters here started until Canada went SI in the mid 70s. I agree that it is likely an export KM/h cluster that was made in Canada. Maybe something that sat on a dealer or supplier shelf for a long time (hence the pen renumbering).
Two doors, four doors, wagons, and ragtops.