Some sort of weapon?

[megan]

Hi, I literally have no idea what this is, it's flat,silver metal shaped like a number 6 with 4 marks,really sharp point,thanks in advance for your help!:

 

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[megan]

Yes it was solved ages ago I. Was just replying to a comment that made me laugh lol, I thought it was a weapon but it's a letter opener lol

 

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