That looks very much like the West Greenland hunting qajaq surveyed by Harvey Golden that he designates "1935 Sisiumuit" (based on date and location where it was collected). It has that prounounced "skeg" built into the keel.
I have a replica of it built by Dawa Nordrup of Monkcraft in 2007 (only variation is an enlarged rather than "ocean" cockpit). Here's a link to Brian Shulz's post about the model -- it's one that he has built over the years for clients, one of his favorite traditional qajags. His post includes Harvey's survey drawing.
I can attest to how fast and maneuverable it is -- have been using mine for 15 years. At 31 pounds (it's 17' 4" x 20") it's one of my easiest to transport and launch, as well.
https://capefalconkayak.com/1935sisimuit.html
Here's a few of shots of mine. I think you have to cut and paste the links to get to the shots in my public Flickr account.
https://www.flickr.com/photos/snapdoodlekid/54446145072/
https://www.flickr.com/photos/snapdoodlekid/54447374705/in/dateposted-friend/
https://www.flickr.com/photos/snapdoodlekid/54447195149/in/dateposted-friend/