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 first (counting clockwise from the west), between panels 32 and 33.
<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>