In reference to the bottom two shields: I remember the one on the left being on a knife that sold on ebay a while back. I don't  remember a lot of the particulars (tang stamps) about the knife but I do remember it had a corkscrew. In my opinion it is an old one. That is also the only shield I've ever seen like that.

The one on the right I have seen before, though it's not very common. Without knowing the tang stamps and/or seeing the actual knife about all I can tell you is: That aside from it obviously being made in Germany,  it's also post war. This due to the fact of the shield being smaller & having Solingen under the tree emblem. 

I thought I add this pic here, maybe get some help to identify. A few thought it could be a vintage Boker.
But why the double trees?

Any markings on the reverse, Katrina?

none,  this is a pic of the full knife, carved bone i am thinking. 

Intriguing. This doesn't look like any style knife I've seen made by Boker. This is so far away from their design style.

Ricky,

I agree and I dont know that it brings to mind the Boker tree.  If you blow it up it appears the branches on this one are not branches but "in bloom" of some type.  I have been looking for a makers mark that may match it.  But then again the pics may not be clear enough of just the marks.  I wonder if it is a rehandle of an old Boker

This is way out of my area of experience, but I've convinced myself that in the lower left corner of the closeup photo, there is some additional etching. Something that looks like it starts with a capital V, with a couple of backwards NNs afterwards. When I see that I always assume Russian/Ukrainian.

Thank you all for the feedback on this. I was told to look in that direction. I been going in circles with this mark. I kept thinking this were from India, Pakistan something of that sorts. 
I rec'd a message back from Boker - 
Thanks for posting the pictures. We can't find any knife in our records that looks like this. You can find an overview for the various tang stamps and logos used on our knives at the end of this PDF:http://www.boker.de/pdf/knifeworld.pdf

Katrina,

That is the guide I use whenever I have a Boker I need to identify.  It is an awesome resource

Dragged out the big magnifier & even looked again in outdoor light I see no other marks. There are quite a few little straight lines in a row like a continuous vibration into the metal when made thruout. 
Guess will go back to looking at different styles of carving horse heads & compare that. I am assuming it is a horse head, the opposite side has what looks like main etched into the handle, just not on the side with the marks. 

Katrina, can you get a good shot of that for us?

Want a better shot of the trees or the vibrating lines?

ok I took a close up of the one i shared, plus of the other one. Trees look raised but are not. 

Katrina- a couple of comments-- First has anyone noticed that the 2 "trees" or whatever do not match ?? Look at the upper branches of the "tree" in this photo--Tree on the left -branches closer together than the "tree" on the right. 2 different stamps, not a double strike with the same stamp-- Secondly, I inverted the animal figure-- Does not appear to be a horse to me-- Almost looks like a giraffe (maybe). The animal head has a kind of tribal feel to it. Blade shape has kind of a Malaysian feel, but that could be way off base, too.-- A real puzzler I'm still working on-- Anyhow, the two pics I was talking about--

ok here is the other side of the handle

John
these marks are off another Knife & they appear more identical. 
It was like the stamp was pressed into the hot metal, its quite deep 

I was asked for my input on this, and my opinion is that it likely doesn't have anything to do with Boker -- I've never seen a two-tree trademark associated with the firm and there are no other clues leading to that conclusion here. It seems to be a South- or maybe Central American machete with cow horn handles.

Mark, 
Thank you for your input!
Kat

I respect Mark's opinion totally and I also do not think it is Boker.  This may be a wild goose chase but I did find similar stylized horse's head handles that are commonly used on Punjabi wedding kirpans.  That doesn't say anything about the trees though.

Katrina-- I have spent hrs. researching this knife and it has led me all over the globe-- Still baffled-- What I surmise so far is a series of contradictions-- South American, maybe-- But they did not normally have curved blades on their gaucho style knives-- They sometimes cut down swords, BUT if you look at the pin placement, the steel is full tang, complete with the radical curve in the handle-- Pins and overall feel suggest 18th-19th century- BUT most countries had far more intricate horse head figures,even then-- Knife also has a blood groove, which is normally used not for the above named purpose, but to reduce blade weight .Almost positive, the handle is cow horn-- definitely horn material. The tree stamps could possibly be a pair of "tree of life" stamps, common representation in many cultures. The fact that it is maker stamped is also intriguing-- Even in the18th-19th century, a maker had to register his mark with a fee-- Usually around $25- Back then, that was pretty well a month's salary-- Hand-made maybe-- but not an amateur-- The curved steel  full tang construction helps verify that--That hollow eye horse figure has a tribal,r fetish, spirit aimal feel to it--- I know I have seen a similar image, just can't place it. Inuits used that hollow eye motif, but no  horses and deciduous trees , there. Long story, full of contradictions-- I will keep looking, plus I have 4 new knife reference books in the mail-- Hope I can find some new answers---BTW, that pronounced U shaped handle, I have yet to find !!

You been busy John! I really do appreciate all your help.
going to sit & google some more.
Kat 

At 7:45 on February 17, 2015, Boker said…

Here's a 1961 model I have with the same shield, but different bone

Ricky, the tang is the BEST question!  It should reveal more info on the knife's origin

So true, Jan! When I first saw that knife I thought it looked like US made. But mine in the picture below was made in Solingen. So tricky, so tricky.

Boker---based on the one pic the tree image most resembles a  1947-1974 Boker logo- Without further photos I would guess in the 1960's-- If you will provide us with any additional photos of markings on any of the blades or tang stamps- I'm sure Ricky and I can help you further.

John, Ricky, Jan - thanks for helping. Here is a pic of the tang stamp. Notice there are no dots above the O. I read somewhere this might help determine the age....not sure though.

Boker-You are correct-- the lack of an umlat above the O dates it to the 60's-- As seen here-- Look for the pic that says INOX underneath- means stainless-http://iknifecollector.com/group/bokerfans/forum/topics/boker-dating- Your shield was used into the 70's and some sources say the 80's on the Boker imports-- However, I found a PDF from the early 70's showing the Boker catalogue--- Although, some of the German imports were still shown with a shield like yours, your 5452 model was shown with the newer circle shield- All of this tells me your small congress is circa 1960's- Ricky may have other ideas, but I would date it to the 60's. 

BTW, here is the catalogue I was referring to- http://jwissandsons.com/1970s/B72-73.pdf

Scroll down to page 8 for a 1972-1973 example of your stockman

 First link I gave you did not work for some reason- try this link

http://iknifecollector.com/group/bokerfans/forum/topics/boker-dating

I did Steve, I now know where it's at. I have another Boker coming in and will surely have at least one question - new to Boker collecting. Thanks.

Ha! Five years later, I finally remember where I've seen the final shield in this post.

It was used in 1982 on a filet knife! This pic was snagged from Bokers 1982 catalog