Silverplate Cup Made In England, Can you help date this?

[Unitedstatesofamerica1]

I got a little information from this site
M'NAB Family Crests

A Dexter Hand With A Sword.
I can't figure out the hallmarks at the bottom.

 

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[TheCannonballGuy]

Perhaps the info you want is at the Silver & Silverplate Hallmarks website linked below. Use the "Silver Hallmarks Directory" at the top of the webpage to hunt for info on your silverplate cup's hallmarks. But you can also learn a lot from what is on the "first" page at the link
Elkington electroplate and silver plate: marks, hallmarks and date letter

 

[conkauctions]

Silverplate Marks Menu - Online Encyclopedia of Silver Marks, Hallmarks & Makers' Marks

I use this site when trying to identify silver-plate or electro plate marks.