This is a Revell Ki-84 that I built in the mid- sixties.
I knew I had it somewhere stored in a box with some unfinished other ones. The unit decal came from a hobby shop in the city (Rotterdam).
At the time no other Ki-84 kits were available and my friend and me considered that it was a lot better than the Revell Ki-61 and Ki-43 kits. A nice and easy build.
This is the building instruction of the first issued Revell Ki-84-1a.