Japanese Naval Signal Flag ID

[cerick1450]

This flag came with a group of Japanese bring-back items from a WW2 Navy Vet. Is this a Japanese or American signal Flag?
Thank you

[GHP]

International Code of Signals flag for the letter "O".


I cannot tell by its construction whether it is US or Japanese (or British; German; etc.). Maritime = international.
Too bad it wasn't the "Z" Flag!

-- Guy

[cerick1450]

Thank you
I also could not tell Here are a few close up pictures, and pictures of several Japanese postcards that were with the flags. Can anyone translate what is written on the cards?

[cerick1450]

I came across a blog that indicated that these postcards were plain Military cards used by the Japanese army soldiers in WW2...

[GHP]

I came across a blog that indicated that these postcards were plain Military cards used by the Japanese army soldiers in WW2...

Yes,


軍事郵便
Gunji Yūbin
Military Post

[oldflagswanted]

Imo ...

This flag came with a group of Japanese bring-back
items from a WW2 Navy Vet. Is this a Japanese or
American signal Flag? Thank you

Hello cerick1450:
IMO one of a pair of hand held semaphore
flags, like those used by the Boy Scouts.
........OFW

[schwrz]

Hello cerick1450:
IMO one of a pair of hand held semaphore
flags, like those used by the Boy Scouts.
........OFW

Japanese naval semaphore flags were a plain white flag and a red flag. They were not multicolored.

[cerick1450]

Thank you to everyone for the help.
Well this is interesting. It turns out that this veteran was a Quatermaster in a Motor torpedo boat (PT boat) Ron-33 during WW2.
From information I received from a member and what I could find on the internet. It appears that the Navy used similar flags for "Underway Replenishment" of boats during the war...Here is a link to Wikpedia article with a photo of use...

https://en.wikipedia.org/wiki/Flag_semaphore

Possibly these were his flags for use with the PT boats????

[GHP]

Thank you to everyone for the help.
Well this is interesting. It turns out that this veteran was a Quatermaster in a Motor torpedo boat (PT boat) Ron-33 during WW2.
From information I received from a member and what I could find on the internet. It appears that the Navy used similar flags for "Underway Replenishment" of boats during the war...Here is a link to Wikpedia article with a photo of use...

https://en.wikipedia.org/wiki/Flag_semaphore

Possibly these were his flags for use with the PT boats????

Sounds plausible.


I'd go with what Old Flags Wanted wrote: US semaphore flag. According to the linked article,

...At sea, the flags are colored red and yellow (the Oscar flag), while on land, they are white and blue (the Papa flag)...

-- Guy