Melling Oil Pump

just thought I would put this out here this is a pic of a melling pump that i got when I bought an engine it was bolted on it but the motor didn't even make the brake in

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Add more pictures showing the rest of the pump. I am wondering if this is an Amazon or eBay copy or a real Melling pump. Either way, give some details too. Are you saying the engine this came on failed during break in? What kind of failure?