Two more photos from the 15th Naval Construction Battalion book. The caption offer no information but I think they were taken in the Yontan (Yomitan) airfield in Okinawa.
The first features a Nakajima Ki-43 "Hayabusa" (Oscar) in pretty bad condition.
No unit marking is visible on the tail but you can see the white band on the fuselage.
The second features a Mitsubishi G3M "Nell", most probably a Model 22, in even worse condition.
The tail is missing so the unit can't be identified at this stage but note the white "C" on the fuselage and the antenna for the anti-submarine "jikitanshiki".