Trying to identify this rucksack

[eastwood86]

Hi everyone, I got this rucksack several years ago and have not been able to accurately place what exactly it is or what country. It looks to be a version of the British Bergen from WWII, but the buckles look different and mine has an ID tag place on the flap. There are zero markings I can find, and if there was a cord/drawstring it is missing, as is the frame that I assume it would have originally come with. Any ideas? Hoping to sell it, but really need to know what I have first. Any help is appreciated!

[Danmark]

Not sure - but the strap ends with the 2 holes and the plastic covered ID flap puts it into the Vietnam era for me.