Is this a WWII Shotgun Shell Pouch? - FIELD & PERSONAL GEAR SECTION - U.S. Militaria Forum

I've been offered this rig and was wondering if this is a shotgun shell pouch. There are the only two photos I have. Also, what is the value of a set like this?

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U.S. WWII Khaki Shotgun Shell Pouch – International Military Antiques

Bag, Carrying, Ammo, M1 w/ Strap, Carrying c.1944 - Page 2 - FIELD

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Is this a WWII Shotgun Shell Pouch? - FIELD & PERSONAL GEAR