|"Eye to sky" means that the coils rest in the container with vertical coiling axis. This arrangement is only used with small and narrow coils, i.e. with so-called split coils where b < d. These split coils are generally delivered on wooden pallets and may simply be moved into the container and set down by a forklift.
This stowage arrangement does generally not present problems with the structural strength of the container, provided the bottom is fairly evenly loaded over its full width and length. However, the securing time and effort by carefully adjusted square timbers and lashings if necessary, is quite formidable (see Container Handbook chapter 18.104.22.168).