New challenge!!!! shell casing type???

Ok folks, I have a challenge for you. What is this shell casing? A Friend of mine gave them to me. He got them (about 150) from his grandfather

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What are your opinions on fake faceplates like this? : r/3DS

Shell Cases for the 21st Century - Montana Hunting and Fishing Information

Applicable model: For Nintendo N64. 1 x Top Shell. 1 x Bottom Shell. Color: Random. 12 x Other Button Accessories (As Shown).

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