What is 1944 in Japanese?

Question

I colect old coins and I found this old coin that is Japanese I think that it is 1944 but I am not shore

Answer 1

昭和19年

It's the 19th year (19年)of the Showa (昭和) period. The number 19 can also be written as "十九."

Answer 2

As noted, the Japanese organized time within the reign of the Emperor. Hirohito's rule was named Showa, and years were marked off serially as X-year of that reign.

BTW, in wartime, Japan confiscated all currencies from territories it conquered and issued new money, called script. You may have a coin from an English colonial territory, Burma, Malaysia, Singapore, Hong Kong, etc. If so, they are  worth a few cents to collectors. They can be found  in all  flea markets and street stalls in Asia.