Looked over the Brooklands this morning, seemed in excellent condition. Managed to take some photos of the frame, looks to have the A brace welded in. The owner said her late husband looked for a newer frame but the lower portion of the frame appears to be that of the earlier builds. Not sure though.
Unfortunately the pictures are to large to attach here. If anyone is whiling to give the photos a look I'd be happy to email or text them. Also, the owner had purchased the front suspension geometry correction kit. Would that be needed if the frame was newer?