Questions About 3 Manchukuo(?) Covers

Hey All,
I've come across three covers I believe are all from Manchukuo, 1930's-40's Japanese occupation period. Due to language there's not much I can understand. Any help very much appreciated. Thanks! Will

First one comes with a letter. There's also a collector note on the sleeve to indicate it's military censor mail to Osaka, Japan from March 11, 1939. Is this correct? Also which town did it come from? Any ideas what the letter is about?







Second: Military postcard. Date? Origin? Destination? I'm clueless.




Third: Another military postcard with same questions as before.

I think these same cards were used in different ares of Japanese occupation,Maybe you have seen this link for Manchukuo?
http://manchukuostamps.com/Japanese...anchukuo.htm

perf12: I have seen that link and that's what led me to believe the two postcards are possibly from Manchukuo, but without the language skills I'm still not certain not have any detailed information. Thanks!

Only someone who can read japanese can ID a card.They could be from many places. South sea islands:
https://www.collectorsclubchicago.o...ions_opt.pdf

My ability to read Japanese is limited, and handwritten Japanese even more so, but I can confirm that the destination was Osaka and that the date written on the envelope (14.3.11) is March 11, 1939 (Shôwa 14 = 1939). I was also able to decipher enough of the return address to determine that it was sent from Jiamusi, Sanjiang Province, Manchukuo (this is in the rightmost column on the back of the envelope).

The four red characters in the upper left of each envelope or postcard read Gunji Yûbin (Military Mail).

I don't see "Manchukuo" anywhere on either of the other two pieces, but you'd need someone with a better knowledge of the language and/or better knowledge of Japanese postal history of the period to tell you more than that.

erilaz: Thanks for the confirmation and additional details for the 1st cover. I'll keep hunting for info on the two postal cards.

Updates on covers 2 & 3 thanks to another collector in a Facebook group. I don't know if he's on here, but thanks again Ken!

#2: Military postal card is from a unit in Manchuria to a lady in Shizuoka Prefecture.

#3: Addressed to a lady in Gifu prefecture from an unit in North China.