Where can I have the coins authenticated

I think this link gives a starting point to submit through NGC in the UK:  https://www.ngccoin.uk/submit/services-fees/ngc/#:~:text=NGC%20Services%20&%20Fees&text=A%20%C2%A311%20(%C2%A313.20,and%20medals)%20is%20not%20provided.&text=Turnaround%20times%20vary%20based%20on,and%20the%20maximum%20is%20200.

You can submit the coins to PCGS this way, though there may be other options.  https://www.thelondoncoincompany.com/store/PCGS-Coin-Grading-c41091426

Maybe some members will be able to advise you whether it makes (economic) sense or not after looking at your coins.

I feel that these are fake, I would post high-quality pictures of each coin for other users to help determine this before wasting any money sending them off to be graded.

Perhaps you should research who already has claimed to authenticate them and assign grades of MS 60 to each and every one of them and then present them and sell them as a package. That will tell you whether they are worth the additional expense of authenticating and grading by a known,  established, credible and respected company.

I took a closer look out of curiosity but because you are new, we should state that the best way of authenticating anything for free here at Numista is by showing high resolution photos of obverse and reverse of each coin as already mentioned, removed from the display and from the  individual capsule. In addition, weight in grams and diameter in MM is of great help in authenticating. Having said all of that it does not look good from the start with just your obverse photo.  Compare to a certified genuine example.

https://coins.ha.com/itm/china/china-republic-yuan-shih-kai-silver-specimen-pattern-l-giorgi-dollar-year-3-1914-sp64-pcgs-/a/3058-37126.s

Save your money.

That coin sells for US $150,000 to $200,000 and one was included in your set?  As harryg says, “save your money.”  The best you can hope for is that it's at least silver.

N#240901

These all look very fake i might add to above 

How come you have coins with L. Giorgi?

And I don't have a single "Giorgim". Mine are probably both genuine and cost me two dollars each. They are genuine, unadulterated imitations of a famous coin. Just like yours. It's a big industry to make imitations of famous, most expensive coins. Don't send it anywhere for verification, only if you buy it for 200,000 thousand dollars - then yes, so that you can be sure that you didn't throw your money 💰💸 out the window. I'm at least sure for two dollars.

Ahoj Ivan

Hello
I found information that China copy coins are composed of highly toxic alloys of lead, mercury and cadmium which are carcinogenic and highly toxic compounds that accumulate in the body. Is that  thru?

harryg: You have added a photo of certified genuine example. I have read from many articles that there are some minor spots on that specific year 1914 coin that have to match to be authentic coin. That's why I'm a bit surprised that the certified example does not have all those special marks or actually missing details. For example on obverse side at 7:30 there should be a thin denticle missing. Based on the photo it looks like there are all thin denticles at that point. Any comments on that?

Why comment on articles you have read somewhere regarding minor details as they do not apply to very poor counterfeits such as this. If we were viewing  a very  good counterfeit then we can contemplate and must consider the finer details required to authenticate it.  All that needs to be done in this case is observe the glaring major issues with it. Everything is wrong with it even to the naked eye and it only resembles a genuine example. It's not even close. Just look at the difference in the size of the engravers name. You need not look any further. 

I'm sorry harryg if I was a little unclear in my writing. I thought that the second photo on your second reply (copy of that photo below) to this topics was the one you refered as certified genuine example. I commented that specific picture, which as far as I have studied that coin type does not meet the requirements of certified genuine example. Should that photo down here be the genuine certified example?

Yes and of course it is absolutely genuine and certified.  I dont pull these references out of a hat and I dont remember exactly what reference source I used to provide this certified example 3 ½ weeks ago. I believe I tried to download the photo from the photo in the Heritage Auction site in the link I provided but was unable to so I usually go to NGC, PCGS, or occasionally another reputable grading service directly from their site that is in the buisiness to authenticate and grade them to provide a certified example. Exactly what are you questioning about this subject, my resource or this examples authenticity? Show us and explain why this is not a certified genuine copy and why what I provided does not have the minor details you are suggesting. Start another thread if you like. I will wait.

This is the coin submitted as a “certified genuine example.”

This is one PCGS certified as SP63 cert number 80121987:

Comparison between the certified coin harryg showed and the certified coin rsirian1 showed:

On the left one the signature is almost 4 denticles wide, on the right one the signature is a little bit more than 3 denticles wide. Is two variants possible for such a rare coin? Or is one of the certified coins not authentic?

Interesting. Here's two more from PCGS that shows the difference much clearer:

There are some other differences.

Definitely different obverse and reverse dies.