I bemoan the loss of the excellent photos that were taken by "somebody" Pope (his name, not his title) and once hosted by Richard Sachs but now lost except to the way-back machines and digital archivists. This guy Pope took shots of (presumedly) Richard Sachs' collection of lugs, BBs and crowns from all sides in glorious B&W...why anybody would let that vanish from the interwebs is beyond me!
Here's just ONE example of the work, recognize the E. Bozzi copies of Nervex Pro lugs...now you DO thanks to this material...