Float planes generally trace their roots to land-based aircraft, not the other way around. The Shiden-kai, seen magnificently in this 2-for-1 painting by Koike, was a famous exception. A heavy modification of the Shiden, which was itself just the Kyofu float plane with the float removed, it managed to evolve into the Navy's best fighter of the war despite its unorthodox pedigree.
This print is reproduced on heavy art board and sized identically to the original, measuring 400mm x 315mm (15.75 x 12.4 inches). It's offset-printed, and the color reproduction has been approved by Koike himself. The art board measures 625mm x 453mm (24.6 x 17.8 inches), leaving white borders around the image to give you the freedom to have it framed as you please. The prints are packed in a special sleeve inside a sturdy shipping box designed to prevent any bending while on their way to you (for this reason, they cannot be combined with other types of items for shipping, they will be shipped separately, even if ordered with other items).