Notes
[As written on tablet]: W. H. Harwood P.O.I R.N. Anti-Aircraft, 1916-17. (Black cross)
R.N. refers to Royal Navy, which means it could refer to this record: https://www.cwgc.org/find-records/find-war-dead/casualty-details/388373/W A HARWOOD/ (Accessed 23/09/2021)