Vtg WWII Swedish Army Military Backpack Canvas Leather Frame Rucksack 3 Crown VG

  

Vtg WWII Swedish Army Military Backpack or Rucksack. Canvas Leather with metal frame. Three Crowns and a Sunburst identification. The Sunburst stamp looks like there is a stamp of a company name under the sunburst but I can't make it out. Material is nice, bag is crisp, heavy and strong.

Leather is intact and usable-but somewhat stiff. I have no idea how to connect the straps. NO TAGS CAN BE REMOVED.