File:HMS Mars Engines.jpg

Summary
Engines of the HMS Mars (1896) Taken from: Cassier's magazine, Volume 12 Pg. 286. URL: https://books.google.com/books?id=sfwyAQAAIAAJ&pg=PA261&dq=warships&hl=en&sa=X&ei=6d74TrzuIeebiALYw8GRDQ&ved=0CEwQ6AEwAzgK#v=onepage&q=Havock&f=false