Just for my own curiosity I now wondered how many there were!
In the Advanced Search (2 Pounds) I have found 143 of them ...
Alderney =
9 : Copper-nickel = 7 Silver = 1 Gold = 1
Ascension Island =
1 : Copper-nickel = 1
British Antarctic Territory =
2 : Copper-nickel = 2
British Indian Ocean Territory =
3 : Copper-nickel = 3
Falkland Islands =
1 : Bi-metallic = 1
Gibraltar =
18 : Bi-metallic = 18
Gibraltar (2.8 E.C.U.) =
2 : Copper-nickel = 2
Guernsey =
11 : Bi-metallic = 1 Copper-nickel = 9 Silver = 1
Isle of Man =
7 : Bi-metallic = 4 Virenium = 3
Jersey =
9 : Bi-metallic = 2 Copper-nickel = 4 Silver = 3
Malta =
3 : Silver = 3
Saint Helena & Ascension =
2 : Bi-metallic = 1 Nickel-brass = 1
South Georgia & S. Sandwich Islands =
12 : Copper-nickel = 11 Silver = 1
United Kingdom (2 Guineas) =
1 : Gold = 1
United Kingdom =
7 : Gold = 7
United Kingdom =
54 : Bi-metallic = 25 Nickel-brass = 7 Silver = 16 Gold = 5 Gold-plated silver = 1
United Kingdom (3 E.C.U.) =
1 : Copper-nickel = 1
Yes, it adds up to 143 and that is all of those entered on Numista. There are probably others, just that no member has entered any of them on here in their collection or exchanges, so far.
Adding up for each metal :
Gold = 14
Gold-plated silver = 1
Silver = 25
Virenium = 3
Nickel-brass = 8
Copper-nickel = 40
Bi-metallic = 52