Please Help ID mark on Plate (pics provided) & Care Question

[RY]

I just inherited this heavily gilded plate & I haven't been able to find the symbol on the back in any references I've tried so far. I was really hoping someone here would know this mark & be able to tell me what it means/who it is.
Also, my grandma had her name & address taped to the back for many years & it has left a residue. Would it be ok to use a little Goo Gone or orange oil with a paper towel or soft cloth just on the sticky spot to get the residue off? Or how should I go about that?
I have photos below.
Thanks for any help!!!
Robyn

Closeup of mark:
http://img.photobucket.com/albums/v211/Salvian/plate_mark.jpg
Photo of front of plate:
http://img.photobucket.com/albums/v211/Salvian/plate_sm.jpg
Photo of back of plate:
http://img.photobucket.com/albums/v211/Salvian/plate_back.jpg

[RY]

It's heavily gilded, all the darker areas are distinctly raised.
Any ideas at all? Really don't know where to start!

[northforkpets]

Possibly replacements . com