JAPAN

Japan or Nippon issued their first stamp in 1872. Some examples of Japan stamps is as follows: Identifier markings Imperal Crest and Country name in country language.
Pair of Dragons facing Japan characters of value.
Imperial Crest with RIN or RN for currency.
Imperial Crest with SEN or SN for currency.
IMPERIAL JAPANESE POST
JAPANESE EMPIRE
NIPPON Or
with YEN or YN