Is this a fake LM4562NA?

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bought some LM4562s from ebay seller ha5ia , they have some of the highest feedback out of the uk based electronics sellers and they only slightly cheaper than buying from Mouser so thought it would be ok but they're defintely fake. No need to measure it, they sound totally different to the LM4562s I got from RS, much lower quality. lesson learned, dont waste money on any ebay op amps.
 
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