Possibly my grandfather. Went on to serve in India in the RAOC in 1921.
Other regimental numbers from Victory Medal card - 38453 & S/12170 issued 14 June 1922
Possibly won the Military Medal for Salonica Gazette no: 61; Registered paper: 68/121/783
Sources:
"United Kingdom, World War I Service Records, 1914-1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QVBG-RVMS : 16 March 2018), Samuel Samuel, 1914; citing Aldershot, Hampshire, England, Lancashire Fusiliers, regiment #9/3770, publication WO 363, The National Archives, Kew, Surrey; FHL microfilm 7,323,202.
"United Kingdom, World War I Service Records, 1914-1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QVBG-RVM9 : 16 March 2018), Samuel Samuel, 1919; citing Aldershot, Hampshire, England, King's Own (Royal Lancaster) Regiment, regiment #38453, publication WO 363, The National Archives, Kew, Surrey; FHL microfilm 7,323,202.