What the hell was in there?? Nobody tells me that this is a regular, training + roid induced triceps.
Probably tons of local oil-based roid injections which has a synthol-like effect after some time (like Arnold had in his biceps).
Theres no site shots there, the guy just has a decent tricep, front on hes more than likely quite narrow, so its easy for him to push his tricep against his lat, to help present the image, if he wasnt pushing aginst his lat in the pose it would look a lot more normal, secret to perfecting that pose narrow clavicles, shoulder width causes you to twist the arm to lean on the lat, looks shit. Bodybuilding used to be about creating illusions of this type, now its just about taking more drugs and insulin, hence why bodybuilding from that era is regarded as art and todays graffiti.