It's an YP-Taonta, by Antti Mäkinen, otherwise great stuffs indeed. Might I inquire some comparison between the Hurttila and the Mikkonen, just out of curiosity?
Sorry for the delayed response. Here are a few pictures, information and my observations on the Mikkonen puukko. I don't know much about Mr. Mikkonen, and from the limited search for information that I've done on him, I've only come up with that he is apparently the treasurer for the Finnish Knife Society
http://www.puukkoseura.fi/hallitus.php. I was unable to really find anything else on him besides the knives that are listed for sale on lamnia.
Here are the specs on the Risto Mikkonen and Pasi Hurttila puukkos. My formal education is in business , so my measurements may be slightly less accurate than someone with a tool and die or engineering background and has a lot more experience with calipers.
Risto Mikkonen
Steel- RWL-34
Handle Material- Birch Bark
Handle Length- 108.17 mm
Blade Length- 99.78 mm
Handle Height (Top to Bottom at highest point)- 28.89 mm
Handle Thickness (Side to Side at thickest point)- 21.73 mm
Blade Thickness at thickest point- 3.79 mm
Blade Height- 22.22 mm
Weight of Knife without sheath- 3.7 oz
Pasi Hurttila
Steel-80CrV2 Carbon steel
Handle Material- Birch Bark
Handle Length-107.98 mm
Blade Length-94.98 mm
Handle Height (Top to Bottom at highest point)- 29.78 mm
Handle Thickness(Side to Side at thickest point)-22.74 mm
Blade Thickness at thickest point-4.74 mm
Blade Height- 22.26 mm
Weight of Knife without sheath- 4.2 oz
The Risto Mikkonen is a little longer than the Pasi Hurttila puukko, and the birch bark spacers are slightly thinner. The Mikkonen puukko has a more slight rhombic cross section (nearly indiscernible) than the Hurttila, and is polished. Both feature a micro secondary bevel.
IMG_2616 by
Bradley Buckman, on Flickr
The sheath and dangler are connected with a round ring and braid.
IMG_2617 by
Bradley Buckman, on Flickr
The dangler also has a slot on the back for what I believe can be used to attach to a button how some of the more dressier puukko's can be attached.
IMG_2618 by
Bradley Buckman, on Flickr
Both sheaths are very well made and hold the knives securely. The Hurttila sheath is a little more robust, while the Mikkonen features a few unique details.
IMG_2621 by
Bradley Buckman, on Flickr
IMG_2622 by
Bradley Buckman, on Flickr
I haven't used the Risto Mikkonen nearly as extensively as I have the Pasi Hurttila, but it's a very capable knife in both performance and comfort during use. I have several other knives in RWL-34 steel and it's an excellent steel, that in my opinion, is superior to the silver steel in several areas. However, the silver steel is more than capable of handling anything that I'll ever use a knife for. I think where the RWL-34 would shine, is for someone that would be exposed to a lot of water, and would need the stainless benefits that it would offer. I personally prefer and use the Pasi Hurttila, but the Mikkonen cuts and performs just as well. Fit and finish on both is very comparable. The Hurttila is a little more robust and slightly better feeling in hand.