I have seen one other of these among the 1000s of MTs and 100s of rare MTs I have seen personally (I have been 'hunting' multitools for years) and the style is not seen in my Google searches (maybe I should Bing it... LOL). The other one I would have seen 3, 4 years ago. Blue and white, which appeals to my aesthetic more than this desert toned one. I will get this one because of its absolute rarity.
This a special day.
I'll update should I find an S-Class Cabinet.
Edit: S-CLASS MINOR SETTLEMENT *FOUND*!! - I have a base (Praguel Outpost) on Hoburyde C40 at a Minor Outpost at +76.73 | -122.33. Reload at the Space Station. This is Eissentam. To get to Eissentam, go to The Anomaly then go to the teleportor and choose THE LAST EGG FROM THE FIRST DRAGON, it's in Eissentam. Happy travels.