EG Webster - but a hallmark I have never seen. Help?!

I got this lovely ‘E.G Webster Double Plate’ Serving Platter at Goodwill. I have seen the spider-like E.G Webster hallmark and the ‘strongarm’ one.

Has anyone seen this mark before? Is it a fake?
eg webster.jpg

E.G.Webster & Son: history and marks
I’ve never seen it before.

Why would anyone bother to fake electroplate? Remember that there is no regulation of electroplate marks so this may have only been used for a short time and has therefore not been recorded.