I have it from Graham Greener that all Greeners were originally sold with case colored forends, forend latch, and even safety escutcheon. He said bottom plates were done both ways. But I have my doubts about the safeties as I have seen too many original-looking guns with bright nitre blue or even purplish fire blue safeties (usually the finish is still there on the flat plate behind the lever).
Regarding pinning, I doubt the diamond is a pin. Although it's not common, it would be difficult to get the position just right. And Greeners, for whatever reason, don't seem to be as subject to wrist cracking as a lot of other makes (especially PARKERS where a sound wrist is an exception). Maybe that much-maligned side safety helps? (Although from recall there is no tension on the assembly, the pin just rotates freely in the boss on the off side.)
