Stek, what you've got there is a picture of the Araya 16B Gold - just with and sans World Champion sticker. Araya also did a 16B Red. Both are NJS approved, both are 20.6mm wide and 11.9mm high. Both are eyeletted. The difference is the gold has slightly thinner sidewalls, so it weighs 310g, while the Red weighs 360g. Also, you can get the Red in an unpolished 32-hole (non-NJS) version.

A lot of keirin guys train on the Red rim and race on the Gold. Nakano used 16B Golds to win a world championship, but swapped to the Araya ADX-1 (non NJS) for his later wins. Maybe they've taken the world champion sticker off because it's been 25 years since such a rim has won a world championship. (Perhaps someone knows the UCI rules - is there a 25-year time limit for saying your product has won a world championship?)

Araya also made the Tita-Ace rim. Nakano used this rim for his 10th world championship win. It is a titanium rim, available in 36-hole and 32 hole (only the 36 hole is NJS-approved). It is the same height, width and weight as the 16B Gold - but costs more and it's a bit weaker.