Here is a rather esoteric item from Lion Roar. Lion Roar brass photo-etch fret LE700048 in 1:700 scale provides over 1,000 port hole covers. As World War Two progressed, the Imperial Japanese Navy, as well as the USN, decided that many of their warships had to many port holes in the sides of their hulls. These not only could be a source of light, revealing the location of the ship at night but also could be the source of additional flooding of battle damaged warships. The answer was to permanently cover them. Most prewar warships had circular metal plates affixed to most of their hull port holes. While the USN would weld circular plate covers over port holes, the IJN apparently also used rivets to secure the plates to the hull. The covers in this set show eight rivet holes recessed in each plate in relief. The naked eye probably won't be able to pick these up and they only show up under macro photography. The rear side is smooth, so that side could face out to represent covers that were welded over port holes. These covers will allow the modeler to replicate the mid to late war ships that had these plates over their portholes in a constant scale without variances that may be caused by using a punch on a plastic sheet. Additionally the brass will probably be thinner than the plastic sheet used for a more natural appearance. However, the modeler will have to remove the two burrs that attach each plate to the fret. Accordingly, to use these plates to cover the portholes of a large ship, such as a heavy cruiser will require some investment in time and patience.