This is something new and bizarre for me, at least.
This came from x-bay and there is a painting of IJA fighter Kawasaki Ki-61 Hien "Tony" with skids !
I've never seen or heard of such variation before, at the bottom right corner wrote December, 1943. At Okadama (Hokkaido) Air Base.
WWII Japanese Framed Military Art Print Signed | eBay
What do you guys think???