If you wonder why I would need to bother with documenting something like a game's promo material, that's because, if you somehow didn't infer already, the fact this game is so particularly obscure and even arguably [if not notably] a game that didn't really smash it out of the park back in the day, little things that come from additional material made for the game back then are sparse and spread in many places.
Take for example mirrors/plates[?] of AeroGauge [1, 2, 3]. They look cool with the embedded logo, have the Japanese machine names, and of course, with how this is something you could only clearly expect to see made for this obscure game from its country of origin [Japan], the only place where you would even know of these or even see photos are in Japanese auction sites.