The Boys Mk 1 anti-tank rifle.
Unknown author<span style="display: none;">Unknown author</span>
Unknown date<div style="display: none;">Unknown date</div>
<a rel="nofollow" class="external free" href="http://www.museum.nps.gov/spar/vfpcgi.exe?IDCFile=/spar/DETAILS.IDC,SPECIFIC=11417,NEXTRECORDS=101,PREVRECORDS=1,DATABASE=57713005,LISTIDC=/SPAR/PAGE.IDC,RECORDMAX=50,RECNO=82,WORDS=stoner+OR+63">http://www.museum.nps.gov/spar/vfpcgi.exe?IDCFile=/spar/DETAILS.IDC,SPECIFIC=11417,NEXTRECORDS=101,PREVRECORDS=1,DATABASE=57713005,LISTIDC=/SPAR/PAGE.IDC,RECORDMAX=50,RECNO=82,WORDS=stoner+OR+63</a>