Military Officer Album

Need help identifying what this US Army WWII gear is...?

Can anyone tell me what this is?
http://i158.photobucket.com/albums/t111/fordellcastle/War/asn1.jpg

It was used by a man named Robert S. Harmon, born in Chicago IL, who went into the military in WWII, 1941. I looked all this up in the archives site for the government. His name and ASN were inside...He was a warrant officer when he went in, if that helps. Last lived in Berwyn Illinois.

It's NOT American Issue. He was using a German Issue M1935 "Meldekartentasche" (Report/Map/Depatch case).

American G.I.'s used captured gear such as this often.

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