-In this intriguing photograph, one can see the jumping-wire antenna cable coming in from the bow of the U-boat from the right, the jumping-wire electrically "hot" radio feed line separating and entering the U-boat pressure hull, and the coconut insulators and supporting cables attached to the bridge.

-The large tube-like structure on the left is a snorkle which allowed the U-boat to run just under the ocean's surface while still using its powerful air-breathing diesel engines.