Bowl with Unidentified Backstamp - 1920s ?

Hello, I need help identifying the makers of this bowl. It is made of earthenware and has an EPNS rim. It is decorated with a pattern of apples and grapes against a blue ground. The pattern has been transferred on and then hand coloured.
There is a nice clear backstamp to the base, but I just can't identify it.
The bowl measures 9" wide by 3.5" tall. I guess it dates to around the 1920s.
I'd be grateful for any help with identification.
Thanks, Clare

 

I found a nice clear image of it on the Staffordshire Potteries website. They want to know who it was too! http://www.thepotteries.org/markguide/who_index.htm

 

Well, you're in good company, anyway, CITA!
Welcome to the Forums!

 

Thanks for that - at least it isn't just me!

 

Robert Pringle & Sons, the WW stands for "Wilderness Works" in London. Probably a blank by another company with decoration and the silver rim made and attached by Pringle & Sons.

 

Here's an ad. with the mark before it changed to "& Sons" in 1899.

 

Anundverkaufen rocks.
Wow.

EDIT
Would you please run for President, Mr. A?

 

"Would you please run for President, Mr. A?"

 

Thank you so much - that's fantastic. I've looked for this for absolutely ages and never thought I'd find it!!