I bought a supposedly original charger for my MacBookPro9,2 (A7A048) 2012 Macbook pro. It does feature the apple logo etched into the plastic, it also says
Designed by Apple in California Assembled in China
On the one side. What seems strange to me is that on another side I find mention of
DONGGUAN SOLUM ELECTRONICS CO.LTD
Which appears to be an electronics manufacturer, from brief web search. Is this simply the company assembling the thing for Apple or is it evidence of a fake? Unfortunately I don't have my broken original anymore to check.