Looks neat and probably makes a good oil seal but doesn’t look very original.
More info at …… https://www.mgexp.com/forum/mgb-and-gt-forum.1/one-piece-aluminum-side-covers.4454018/
One Piece Aluminum Side Covers? : The MG Experience
information about the MGB and MGB GT classic cars including news and reviews, techs and specs – also updates on repairs, servicing and diy modifications I do on my own MGB Roadster
MGB tips mods and maintenance 