Search:

I think it's traced to this Philadelphia, a village about a mile from Sheffield ("Philadelphia near Sheffield"):

Hallamshire: The History and Topography of the Parish of Sheffield : with ... -...

It does, but it is sometimes the case that for a WR stamp, the die was misaligned and the other half of the 'W' missed, generally when the point of it falls on the edge of an angle.

Finally got this one in after some delay. I haven't had time to research it yet, but will get there soon. William Jackson, Philadelphia near Sheffield. I *think* it is VR stamped, but looking at the...