I would say, Ayvazovskiy had painted this in 1851, and the descriptions thoroughly avoid the proton torpedoes (or nuclear-powered missiles), depicted on it.
This makes to think that the painter was drawing what he was said to, including the mysterious artifacts to distract the public attention from some real things, using the fake 1812 nuclear war (together with the XIX Global Flood and buried city building storeys) as camouflage.
P.S.
A funny fact: in Russian "yadro" means both "atomic nucleus" and "cannonball", so "yadernaya" ("nuclear") is a wordplay "cannonball artillery" / "nuclear artillery".
As they had no idea about atomic nuclei till 1910s, the wordplay could be constructed not earlier than in mid-XX.
(Personally I was joking so in 1970s/1980s school).
Related audio:
(Btw, on the coming UFO visit topic also.)