DescriptionSubmarine (PSF).png Line drawing of a submarine (the USS Nautilus). Source Archives of Pearson Scott Foresman, donated to the Wikimedia Foundation...
DescriptionStreamlined submarine (PSF).png English: Submarines that are contoured to reduce resistance to motion through a fluid (such as seawater) Date...
DescriptionConning tower (PSF).png b/w line art drawing of a conning tower Source Archives of Pearson Scott Foresman, donated to the Wikimedia Foundation...
.png){kind=link}
.png){kind=link}
.png){kind=link}