One of the relief sculptures by <a href="//commons.wikimedia.org/wiki/Creator:Charles_Wheeler_(sculptor)" title="Creator:Charles Wheeler (sculptor)">Charles Wheeler</a> in the sunken garden at the Tower Hill memorial, commemorating the merchant mariners who lost their lives in World War II. 
This relief is the seventh (counting clockwise from the west), between panels 74 and 75.
<a href="//commons.wikimedia.org/wiki/User:Thryduulf" title="User:Thryduulf">Thryduulf</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>