Help Identifying A Set Of Florins

Go in Baldwin on The Strand and ask for Neil paisley

Don't put them up on ebay until you have thoroughly satisfied yourself that you have done sufficient price research first.

A bit like real estate. You need to know the value in the marketplace of what you are selling, before you decide to sell.
Same applies to buying.

Thanks for the welcome.

No intention of putting them on ebay. Just really curious now as I was expecting the answer to be straight forward.

Originally there were 6 sets. The master set which has the Trial Die on the reverse and 5 other sets which have the plain reverse as your set. This set shown below was Originally Purchased at the London Mint Office for £18,000 later sold at auction for a little over £7,000. Hopefully they are the real deal and not a knock off copy version. Looks to be quite a valuable set £100 valuation for 5 coins will be a smack in the face if they are not genuine but a worthwhile investment if they are the real deal. Nothing like provenance to back up any valuable and will maximise the best return.

You would need to send them to a TPG. I wouldn't advise PCGS or NGC for a simple reason and without being rude and more like tongue in cheek. What they know about English coins you could write on the back of a postage stamp. Which isn't surprising as they deal with US coins as their main focus. Your best bet is to send them to The Royal Mint with a Recorded Delivery S.A.E inside So they can send the coins back once they have told you what they are. I am surprised they told you they would charge. I have not heard of this before. Most people post coins off to them all the time without initially contacting them other than for the address. I sent 3 pound coins(turned out to be fakes) and a Cupro-nickel Half penny 1965(which turned out to be electoplated) . Never cost me a penny

IMO, it is really worthwhile to go to the mentioned Baldwin's; they will be accurate in their assessment. I can virtually promise you they will take an interest & perhaps you might speak to Neil Paisley there. The Royal Mint would take their time in authentication but a letter by them if the coins are authentic would add a good deal of value.
Also, IMO, on their face, these are not all that exciting and especially to a young would-be collector - perhaps sale of them and put into something a bit more exciting would be a thought.
These are very much up my alley & can say from the pictures they look good. Please do not try to clean and store them separately.

As I have mentioned before just take them to Baldwin ,you need to find out what they are and worth before going any further.The picture of the REV only shows one coin and is not very clear.
The questions you are asking.......... a dealer will tell you when they have seen them.

Know dealer or company is going to be sure looking at pictures and you could keep sending the pictures everyone and still not have an answer.

Alternatively take them to one of the big coin shows in London or Birmingham.

Somebody needs to look at them in hand and you will still be wondering what to do with them untill they do.

The only time I have sent one to The Royal Mint ,it took about seven months.