MG Car Repair: Starter, brown wires, metal cans

Question
I had asked you about my starter on my 77 MGB. I'm looking for the starter relay. I have three relays on the side wheel well above the ignition coil. The one furthest front I take is for the electric fans. The one in the center I think is the lights, and the one nearest the firewall has heavy brown wires on it. I think this is it. I've looked in the parts catalog, but they show a larger rectangle shaped one. The three under the hood are all the same shape.      ( small round and black ). I wanted to check that first, but wanted to make sure I had the right one. Thank you.

Answer
The starter relay should be on the right fender valance and it should have four pins labeled "C-1", "C-2", "W-1" & "W-2" There will be a double brown wire connected to "C-1", A white w/brown tracer on "C-2", a double white w/red tracer on "W-1" and a black wire on "W-2". Most of those relays were metal cans held to the fender well by two screws. The color codes are a MUST so you can ID the relay by the wires even if a smaller relay was used.
Howard