Traces of shells

There is armor plates from the Rzhevskiy range-fire and from the ships that were under fire in Leningrad and Kronstadt. According to some information, there is also an armor from the unfinished cruiser Petropavlovsk (the former Lutzov) drowned by the Germans in Neva river. The image clearly shows the trace of the tangential impact of a 75 mm projectile.