Here's an interesting bit:
https://en.wikipedia.org/wiki/USS_Monterey_(BM-6)
"The Monterey operating from July 1900 to September 1901 as station ship at Shanghai, voyaging upriver to Nanking from 25 to 31 July 1902 with Special Commissioner T. S. Sharretts on board for a diplomatic mission..."
Also, please consider that the
original stock of this gun is at least half of its historical value!