CollectForFun

Actually last week I received a little Christmas present, a guilty pleasure...
Silver Bar, 250g, Degussa (historical)

Just reach out to your nearest local mint, or any other for that matter, and ask. Not sure if this list is complete, but there's plenty to choose from https://en.m.wikipedia.org/wiki/List_of_mints. Private issues are regular part of their business.
I know several people from my local circle of collectors who had their own medal designs successfully produced by the local mint. The lower the mintage, the bigger portion of the total budget is used on the die engraving. You could save some money if your design is relatively simple to engrave or if you satisfy yourself with just one-sided "coin".
BTW note that what you issue will always be a medal or a round, never a coin (which is distinguished by a nominal value on it). At least I assume that it is illegal to produce your own coins in the UK 😁

EU has an annually updated official list of gold coins that meet the conditions to be treated as VAT exempt investment gold. You can find it here (and Tap for document text) and it does include the sovereign. So just refer them to this list and you should be able to claim 0% VAT.
By the way, the list does not include all eligible coins, also those that are not included but meet the conditions are eligible for 0% VAT.
The HS code is for assessing the customs duty and while there may be different codes for monetary/non-monetary gold, it's in general subject to 0% duty anyway.

EU has an annually updated official list of gold coins that meet the conditions to be treated as VAT exempt investment gold. You can find it here (and Tap for document text) and it does include the sovereign. So just refer them to this list and you should be able to claim 0% VAT.
By the way, the list does not include all eligible coins, also those that are not included but meet the conditions are eligible for 0% VAT.
The HS code is for assessing the customs duty and while there may be different codes for monetary/non-monetary gold, it's in general subject to 0% duty anyway.

I concur with the above, don't buy such damaged goods unless you are ready to treat these coins as piece of metal only and unless you get corresponding price, which in this case means several % below melt value.
Even if you are tight on your budget, you will have much more joy from owning a nice coin instead, even if it costs a few euros more. There are plenty of French and Belgian francs and Dutch guldens around available for little premium and often in great condition from which you can choose instead...

Well, a quick search in auction results from recent months reveals that you could acquire a similar coin in much better condition for around half this price. E.g. this one. So it could make sense to wait for new offers at some reputable auctions and save some money plus have additional peace of mind...

This must be a genuine “medal coin” from the nation of Cnina because it’s been slabbed as “Authentic not gradable” by Numi original 
 
 

It is very likely the rest of the coins are genuine, just that they are base metal coins with very little value. Some of them could still be silver, e.g. the German 2 mark and Mexican peso, but even so they wouldn't likely be worth too much above their melt value.
All in all, I would say the price you paid for this lot is just about right, if you like the coins from a collector's point of view. I would not expect anything really valuable in there, but I couldn't recognise all the coins so I would recommend that you do your own research with the help of e.g. Numista online catalogue, which will give you an indication of the coins' values.

I did not find recent auction sales of any graded ones, but ungraded was sold for £35,000 + 17% in December. 
London Coins link
Interesting quote from the coin description:
At the time of writing an example of this £200 2oz issue could be seen for sale on-line in excess of £80,000.
I think such coins with unproven real value won't be sold through auctions very often because there the seller loses any control over the coin so they are entirely at the mercy of the auction house and its starting price and whether the right buyer appears at that particular auction. Plus there's the commission. BTW 35k was the starting price.

and also 1/10 oz round from Johnson Matthey

I'm not sure if there even are any fractional Pd bullion coins, or if it's 1oz only (Edit: there apparently are some 1/2oz pandas). But there are 1/5/10/20g bars, or you can find Russian Pd coins from the 90s which were 1/4 and 1/2 oz.

I'm not sure if there even are any fractional Pd bullion coins, or if it's 1oz only (Edit: there apparently are some 1/2oz pandas). But there are 1/5/10/20g bars, or you can find Russian Pd coins from the 90s which were 1/4 and 1/2 oz.

I haven't bought from them yet but I am generally familiar with their brand. I am sure I was checking their various European sites many times for some good deals and although I have not made any transaction with them, I had never any impression that something wouldn't be right with this company. 
You can check their .eu site for additional background information on their history and operations. You can also check e.g. Trustpilot ratings for their Tavex.dk Danish operation, google reviews for Swedish tavex.se branch, etc., there's a lot of feedback, arguably generally positive one.

Seems to be very similar items in all then. I made a very impromptu unboxing video on Monday after I collected it, hence why it's not the best.
As I'm sure you can tell, it's actually the first unboxing vid I've ever done
 
20211213_153414.mp4

Portugal is famous for his beautiful beach, nice people and ugly coins. Commemorative of the Money Museum.

Sovereigns are the most prestigious bullion gold coins in the world.

As if not being legally obliged equaled not being allowed to. Very rude response in my opinion...

Thanks. There's not much on it at all. I believe they are medals which were primarily created to celebrate the 3 year anniversary of the National Redemption Council which was the military government in place at the time. Like stamps, coins were also used to communicate to the population so they used the opportunity to bring awareness around the initiative Operation Feed Yourself in which its aim was to encourage growth in agriculture across the various regions. I only discovered they existed on this website here which has acted as a guide for the coins I should be on the look out for (from 1958 - 1977 only) and is the only coin that hasn't got mintage figures. Not sure how the coins were distributed but there is was a standard copper nickel one produced (still quite rare, there was one on eBay in America but they wouldn't send it to the UK and its sold now ☹️) so I assume that the gold and silver ones were given high profile dignitaries or something.
Yeah, I've seen that site you sent and you could be right, the gold is most definitely the same one! The silver one isn't but looking at the markings I think I've actually found it here. Do you collect these types of coins?
 

This is so interesting! I've never seen these coins (medals? tokens?) before. I tried to search for more information about them but found only one other mention of them on the internet which you might have also seen over here. Do you have any other information?
Which is also quite interesting is that the picture of the gold coin pasted in the thread under the link above seems to exactly match your coin (judging by several distinguishing marks - e.g. a dot in the middle of the cross, at 3 o'clock to the right of "V", marks on the edge under "RELIANCE", etc...). Could it be that it is the very same piece? Which also makes you wonder - how many of them there is? Is there any other at all?
On the other hand, I cannot find any such similar features on the silver coins...
Anyway, very interesting, thanks for sharing!

Here is an official video where you can see how they make the coin by hand to give it Reverse Proof quality. The video is in Spanish, but it can be translated into English automatically on YouTube  

They could have also meant "billon" sovereigns...🤔😉

They could have also meant "billon" sovereigns...🤔😉

For your reference, I attach a link to a German forum where the same question was asked 10 years back. Apparently, this particular type of coin was commonly forged even then, so it is not impossible that yours is not genuine either. But, on the bright side, the forgeries may have the right gold content...
https://www.numismatikforum.de/viewtopic.php?t=42418

Below is a couple of links to Numista pages of some of these coins plus links to pics of certificates for these coins
Samoa, minted by the Royal Mint, according to this
Gambia, also Royal Mint as you can see here
St. Helena, Royal Mint
etc...
You can probably find all of them on eBay to get an idea on the asking price. I don't think they have any particular appeal for "real" collectors but hey, they are proof and silver, so that's definitely at least something.
If you had difficulty finding info on any particular coin just let me know and I can help locating it.

Just looked up the price HA sold the original  PR67 CAM  for $22800 in Jan 2021.Imagine the sheer disappointment if you received a clone.