Well, Darkbulb and I collected luxury editions of cart razors. I have a good collection of Trac II Deluxe, Contour/Atra Elites and Wilkinson Sword Royale's. DB was also into I think Reed Barton and International Silver editions. We would make each other aware of lots and wouldn't bid against each other. DB messaged me about a lot on ebay, listed by a widow of a Gillette executive.
The lot contained Platinum, Rhodium, Gold, and Titanium Ion plated razors. I believe they were all Sensors. We agreed want we would buy, and I got a gold plated Sensor with a pen, and another. DB also bought two. This left the Titanium Ion Sensor for anyone else. I believe these are not retail products, but very limited editions that were gifts of the Gillette company. There was some providence in the postings. I will look for a few photos posted previously.