They look to have some neat stuff but quite high on the asking prices. Condition of most of the guns looks rather iffy - especially at the prices they want.
The Farquharson is a neat gun. It is a No.2 action (as they are classified in Winfer's book).
Looks like a Webley finished gun retailed by Lyon & Lyon.
7.5K GBP is close to $12K US which now I think is at the high end of the market here anyway.