Territorial Force WW1 War Medal awarded to Gunner G Kerr, Royal Horse Artillery, Royal Artillery. Originally assigned a regiment service number of 283, shown on medal.
This was subsequently amended to service number 602032 when service numbers were renumbered in 1917 Research I've carried out seems to suggest the following - Based on the consolidated number, it's likely that he served with the Ayrshire Royal Horse Artillery. Disembarkation date overseas of 03.06.15 and discharged from army on 12.10.18 at the end of the war. Was promoted to Lance Bomadier and was a driver (in charge of horses pulling the gun carriages).
Difficult to consider anyone who served in WW1 to be lucky but to survive over 3 years of active service is probably quite rare for this length of deployment, as only around 20% of the Territorial Force survived the war.