Can anyone tell me which brakes these are?

Heres some pictures...

http://homepage.ntlworld.com/dskirrow/Brakes/

A bit more info...

- They sit under 10" wheels

- They a 4-pots

- They have no brand name stamped on them

- They are not fancy new alloy types so Im guessung they were taken
from another vehicle.

- They are bigger than the brake disc and only just fit inside the 10"
wheels, I know its a tight fit as I the wheel balance weight on the
inside of my wheels must foul them ever so slightly as there is a
small patch of wear long the top of each caliper where the balances
must have been rubbing against it.

- They appear to only have 1 brake line going into them and it is not
the braided type.

Any ideas people?

Cheers,
Dave