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Fake Mum?

2.1K views 49 replies 20 participants last post by  Ihatemacs  
#1 ·
I recently purchased a nice complete matching (at least reportedly) Series 32 Toyo Kogyo. Early stock with proofs, drain holes, aircraft sights, proofed and legit-appearing monopod, matching receiver, bolt assembly, and dust cover, and of course complete with the mum. After letting a few of these complete rifles go by, including a Type 99 Long, I felt compelled to not let another slip by - I rarely see them online or in person.

I reached out, made a deal, haggled down a few hundred, did my research, and felt good! Rifle looked gorgeous and seemed correct! Having the rifle now, I am still happy, but then I came upon the topic of "fake mums"... something I didn't even realize occurred.

Well, curiosity turned to paranoia as I assessed the mum area more discretely... I don't think it is fake, but there are some oddities...

What do you all think?

The finish is clearly thinner around this area, but it is not restricted to the mum are alone, going down the sides towards the bolt access area. I don't see any real obvious grounding marks or machining (I'm a novice, though, and the top of the receiver ring is a bit concerning) and the gas port, model text, and the barrel index markings are present. My best assumption is maybe it was wire brushed to clean it up some?

However, looking into it further, I cannot find a TK mum that is so close up to the front-end of the receiver/barrel shank. The mum seems large, but that doesn't seem to be too off. The mum is pretty perfect, with no obvious roll marks on the left or right... but it's flush to touch and you can feel and see the mum from the side, so it doesn't seem to be indented too much.

Thanks for any help - I hope this is just my paranoia, but I guess I had to see what may come.
 

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#2 ·
TK is known for having light mums, especially on their later rifles. I cannot pass judgement on this as it’s either a light stamping or a damn good fake…I’d have to feel the mum and “99 Type” stamps…and that looks painted on. Best bet is to take calipers and see if the top/bottom diameter matches side/side.

As a FYI, your rifle was discussed in an earlier post about laser engraved mums, see one of the last posts in the thread below.




If you search, there are a few other fake mum discussions.
 
#5 ·
It does look like a renumber to me. I have almost all variation of WWII Japanese battle rifles and something doesn't look right. The bluing between receiver and barrel are not the same patina, which could be insignificant, but none of the rifles I have show that difference.

Worst case, disassemble and look for discrepancies if you already have not.
 
#6 ·
Now the auction is over, please post a link to the ended GB listing. Maybe help out the next guy if this seller is the one having the mums redone to make a few extra bucks. Or find out where he got it…you don’t go through all this trouble to sell just one rifle…if you know what I mean.
 
#16 · (Edited)
I hate to advise you either way as this could be original or a very good pass at a fake. The things that bother me is that the mum is....perfect. Secondly, the finish on the entire rifle is nearly perfect except...right at the mum and on the monopod. My gut would tell me someone redid a scrubbed mum and added a pod and probably dust cover from somewhere else. Again, just would be my gut if I were in front of it I would inspect everything closely with a magnifying glass. Also, don't like how the pictures are very clear except for the bolt numbers and there are no pics of the back of the dust cover when the rest of the ad feels like someone that knew what to take pictures of for a collector looking to buy.
 
#19 ·
Yeah, with the revelation of the mum, I no longer have any reason to believe that the rifle is likely original. However, that said, the full bolt assembly, dust cover, and receiver all match. The monopod is proofed at the base, has wear and rust, so I don't think it's a fake, but perhaps this series wouldn't have been proofed there per Type 99 Collecting site. The dust cover matches, and while I think it would be at least moderately annoying to find a dust cover with the three same digits, it could have come from thousands of rifles. At least it came with a nice Mukden early bayonet, which is pretty cool. I'll disassemble the rifle at some point and report back.
 
#22 ·
I agree with the post that asked the white paint be removed and closeup photo taken. We might see some machine marks.

This was purchased in violation of Gun Broker rules. Both parties promised not to do that when they joined Gun Broker. Probably best not to request or attempt a return and there is not even recourse to leave feedback.
 
#24 ·
Yes, it's a horribly faked mum. Laser engraved and slightly oversized. Real mums are easy to pick out as the left and right edges will always be thicker than the top and bottom as they were applied with a roll stamp. Some are more aggressive than others and some (particularly Type 38s) will have the metal more finely polished after it was stamped, but they will always have thicker left and right edges. That would be something extremely hard to fake.

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#29 ·
Roll marks work by displacing metal, an act which over leaves high spots on the perimeter of the stamp. An even marking - without wide or high spots - is typically a no go. I’d be curious to see a high quality flat gauge placed on top of the receiver to see if there are divots or whatever else.
 
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#31 ·
At least you have helped reinforce careful examination and attention to details with your post here. Not the best to bypass Gun Broker rules, though, especially now that it's posted on the internet! There's a good chance the seller knew about this faked mum and knew that selling it outside of GB rules would make it harder for you to demand a refund! We should always assume something like this is fake until proven otherwise, by close attention to details, asking others before purchase and learning tons before buying. Nice rifle otherwise.
 
#33 · (Edited)
... We should always assume something like this is fake until proven otherwise, by close attention to details, asking others before purchase and learning tons before buying.
Fakery is a reality. Tangential to this discussion is the Finnish "SA" stamp on rifles, other than Mosin Nagants, that were used by Finns. Likely "candidates" for this sort of fakery are Carcano's, Swedish Mausers, and even some Japanese rifles. A guy in Poland is selling the "SA" punches on Ebay:


Description of Japanese rifles used in Finland:

Scroll down to the sections on the various Japanese rifles used in Finland.
 
#32 ·
I don't know why you can't try to return it. It doesn't hurt to ask and the seller may not have even known it is fake. Yeah, it was against Gunbroker rules but how are they going to know? Seller will not be happy but he may take it back. You'll never know unless you try, and you'll never be happy with that rifle.
 
#39 ·
I'm not overjoyed about the rifle having a mum faked, but I can't deny the rifle is nice regardless. I now forfeit any real comfort telling myself any other part of the rifle is likely original, but it does seem to be a correct stock with a matching bolt assembly and dust cover, complete with a genuine monopod- if anything, I will keep it as a piece to study should similar fakes come about, keep it out of circulation, and remind myself to research once, twice, thrice. It could have been faaaaaar worse a burn, in all honesty!
 
#42 ·
Some Finn civil gaurd utilized Arisaka’s stayed in Army possession and were imported to the U.S.. Bayonets and other ancillary equipment were sold as surplus via the army stores. I have Type 30 and 38 rifles with Civil Gaurd markings, two type 35 bayonets and one type 30 bayonet all with Finnish provenance as well. Two of the three bayonets are SA marked and genuine. All I’m saying is that any civil gaurd utilized Arisaka’s that remained in inventory and if inspected post war at any time, they could legitimately have received an SA stamp just as those bayonets did. No I have not seen one on a rifle. Just saying it’s possible.
 
#43 ·

New fake mum just dropped. The faker was nice enough to test it out his engraving on the buttplate. Arisaka collecting is such a minefield these days. It seems a good half of the rifles I see for sale now either have repro monopods/dust covers, or it's some parts bin special that has been thrown together and now the fake mums keep popping up more and more.
 
#45 ·
Maybe an ignorant question: when a fake mum is applied, is it usually applied to an Arisaka which never had one (and why didn't it?) or usually applied to an Arisaka whose mum had been ground off (and the evidence of grinding removed)?