This is a ship museum that is included in the Ship Museum post I am working on. Wikipedia https://en.wikipedia.org/wiki/HMS_M33 has a good article on the ship although at least one link is broken on the Wikipedia article (see below for which one as well as a Wayback Machine solution for the broken link.
Links from Wikipedia:
HMS Monitor M-33
https://en.wikipedia.org/wiki/HMS_M33(same as Wikipedia link above)
http://www3.hants.gov.uk/m33.htm (broken link on Wikipedia; see Wayback Machine below for workaround)
https://web.archive.org/web/20160325013825/http://www3.hants.gov.uk/m33.htm (Wayback Machine for broken link on Wikipedia)
HMS M33 in 360 degrees https://www.nmrn.org.uk/node/1417