It's Taiwanese I beleive. May have been used during Japanese occupation.
But the flag on the right is Taiwanese national flag.
The first two large characters below flag (read from right to left) read Zhong Hua. The international name for Taiwan as they are not allowed to use their "independent" name Taiwan.
But the flag on the right is Taiwanese national flag.
The first two large characters below flag (read from right to left) read Zhong Hua. The international name for Taiwan as they are not allowed to use their "independent" name Taiwan.