I just did a quick search of your first item, 83-110, mnh, on HipStamp. It looks like there are a few on offer. If you're not familiar with HipStamp, do be aware it's individual sellers, like on
ebay, so I'd try to find as many of them from one seller as possible in order to not run up a bunch of individual shipping charges.
https://www.hipstamp.com/category/e...%5D=mint-nh-For your others, you can just enter 'Finland ###' where '###' is the Scott number up in the top search bar. You could also add 'mnh' to the search, but my preference is to filter for mnh on the side. (Click on 'Europe' on the left-hand side of your search results, then you'll be able to filter by several different factors.)
[Disclosure: I'm a collector who sells on there, but I don't have any Finland for sale.]