Geograph - photograph every grid square

The coordinates are based on SD2504 : Taylor's Bank off Formby Point and SD2504 : Buoy C4 in Crosby Channel.
Originally I thought this was the wreck of The Ionic Star ( Blue Star Line ).
However after much deliberation and help from fellow Geographers, in particular Mike Pennington and Robin Webster, I fairly convinced this is the Pegu.
According to Link
On 24th Dec.1939 (the Pegu) while inbound to the Mersey on voyage Glasgow - Liverpool - Rangoon with general cargo, and with buoy lights extinguished as a wartime measure, she grounded near Beta Buoy. Refloated on 26th, but struck the revetment and broke in two. Salvage was abandoned.