Both kits seem very nice, for their time, boxes look great (corners, no fading or mildew + every parts still sealed) yours looks like late 60s early 70s OTAKI very first editions, final Prices can be tricky especially on eBay: way over top OR...pretty average, depending who's fighting with you & as mention when! Rarety of those in original OTAKI boxes is true, BUT important to remember that most of the 1/16 OTAKI cars kit molds are still with us, including the MIURA & AR33. FUJIMI now owns,( since the late 80s), most molds of OTAKI former 1/16 car kit line