Nice deep color I would consider this coin XF/AU.

United Kingdom 
KingGeorge V (1910-1936) 
Bronze
Weight2.83 g
Diameter20 mm
Thickness1.3 mm
ShapeRound
OrientationMedal alignment ↑↑
Demonetized12-31-1960
ReferencesKM# 808, Sp# 4059, Sp# 4060
Obverse
Uncrowned portrait of King George V left, legend around.

Lettering: 
GEORGIVS V DEI GRA:BRITT:OMN:REX FID:DEF:IND:IMP:
B.M.

Translation: George the Fifth by the Grace of God King of all the Britains Defender of the Faith Emperor of India

Engraver: Edgar Bertram MacKennal 

Reverse
Seated figure of Britannia facing right, trident in left hand, shield with Union flag in right, denomination above, sea behind, date in exergue.

Lettering: 
FARTHING
1917

Engraver: Leonard Charles Wyon 

Edge
Plain