... [Davidov and Chvostov] fell with glee upon two junks and burned them to the water's edge. Finally they found a ten-pounder brass cannon which seemed a fitting trophy to take home. It was, by some curious chance, an old Korean gun captured in 1597 by Hideyoshi's invading force, but it was hauled away in triumph to be taken to Kamchatka as a memorial. [Wildes's "Aliens in the East", pp. 147]
[Khvostov and Davydov] appropriated the rich cargo, and destroyed the ships. In the booty there was allegedly a ten-pounder bronze cannon, captured by Toyotomi Hideyoshi from the Koreans in the closing years of the sixteenth century. [Lensen's "Russian Push Toward Japan", pp. 171]
If Khvostov and Davydov really brought a centuries-old Korean cannon back from Japan to Kamchatka in 1807, "as a memorial", what happened to it?