I've seen them go for between £10 and £30 on fleaBay, so the girl done good, as they say about the footie.
From memory, there's ruby, kingfisher, meadow green, pewter, aubergine, sage green, lilac, gold FLC, aqua FLC and sky blue FLC. Er, I think that's it for the catalogue colours. The first two are by far the most common from what I've seen. Aqua and sky are the rarest.
There may be a few friggers around in weird colours that the Whitefriars lads made for their own pleasure, though I haven't seen any myself.