800px-Kamlunge_Bofors_15.2_cm_m-12_battery surving
A few of her guns still remain emplaced around Sweden to this day. While its 1900s tech, these EMP-immune guns could ruin the paintjob of Soviet ships well into the 1980s if needed. The Swedes no longer use these guns, but still have thier breechblocks (just in case)