The one with the pop stud closure started life as a plastic clip version as you can see the stitch marks where the plastic clips were. What reason it was changed to pop studs I have no idea-damage to the plastic clips or maybe for ease of use???
There are faded markings on both(genuine issue).
Been after one of these for 10 years plus but was not prepared to pay the stupid money they go for then what do you know,bought 2 in the space of a month
My first thoughts were Canadian as well.
Reason Im thinking Nato/European is a while back(no longer have it) had a similar green one and that was stamped up/marked etc and cannot remember if it was(not much help Im sure)Norwegian,Dutch or Belgian.