that one is pretty easy: look at the underside of the Bocama head lugs...now check out your McLean's. Another way to eliminate the BCMs aside from the stamp in the front is the scallop in the front, which was not often removed even by custom builders. I'd also check out the CR page/archives on Silk Hope and see if it mentions what lugs he used (that would be "cheating", though). Some of the long-point lugs with windows (BCM Pro, Haden Pro, etc.) are so similar looking that you really have to rely on the literature.