Set of small forks possibly Paul Storr??

Could someone tell me if these are Paul Storr forks please. I’ve got 12 of these each one weighing around 40g with a total weight of around 505g. I believe from the markings that they are London, George III dated 1817 but please correct me if I am wrong because I am very new to this. Any ideas on the value? Many thanks.
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They could very well be Paul Storr. Your picture of the hallmark is not detailed enough to see the exact shape of the punch - and even if it were I would not give you a 100% definite identification. These need to to be seen “in the flesh” by an expert.

I agree that they are London 1817.

Paul Storr flatware comes up relatively frequently in eBay although many more spoons than forks. A single large dinner fork sold for £185 and dessert and table/soup spoons sell for around £100 each. If authenticated your 12 forks could sell for £1000-£1500.

Many thanks for your response. I’ve arranged to have them looked at by a local expert to have them authenticated.
Kind regards, Alistair.