This is Revell-Japan kit H-288, the 1975 [2nd] release of the Mitsubishi J2M3 "Raiden" [codenamed "Jack"] in 1/32 scale.  The 1st release, copyright 1971, is much more common! 

The plastic parts are still in their original poly bag; rubber tires are in separated sealed bag. 

The instructions are in Japanese and have color illustrations on the front and back of the booklet. There is also a "booklet" type catalog of Revell-Japan's large-scale [1/32] kits of this period.

The decals ?  Well...they are probably "OK".  If am also including reproductions [last photo is work in progress!].

Each facet of the box cover is shown.  The box art looks as it if could have been done by the same artist who did the artwork for Nichimo's Raiden kit.