Need help with 2 pistols

[Dave Sanders]

I have a neighbor who has two pistols and I really don't know much if any about them. One is a WeblyMark VI and the other is a Swedish Huskvarna 9mm. The Swedish one was brought back from WWII by his dad,according to him. I looked on Gunbroker and saw the Webly at around $700 and the Swedish from $700 to $1200. I guess I have few questions if any of you know some about these guns.
1. Would be are these two guns worth that kind of money?
2. There is a patent date on the Webly of 1918. Was it used for many years and how could one find out when it was made for sure if they were made for many years.
3. Was the swedish gun used by the Nazis or their allies to any degree?
4. Is either gun an in demand collector gun and if so, what would be a realistic value for these guns.
5. How could I find out for sure when the Swedish gun was made?
Thanks in advance for any help you may give me in these questions.
Dave