Ichinomiya-machi, Chousei-gun ,Chiba-ken
Postal Code: 299-4300
JIS code: 12421
with check digit: 124214
When there is not a mention, Ichinomiya-machi, Chousei-gun,
Chiba-ken(aka: Chiba, Chiba-ken, Chibaken)
Chiba-ken(aka: Chiba, Chiba-ken, Chibaken)