https://www.ebth.com/items/4760964-1992-limited-edition-royal-doulton-figure-of-the-year-mary
That may be the decorators signature,, this figurine was designed by N Pedley,, whoever that is !!
You might watch these RD items to see what they sell for !! And check ebay to see what people are actually paying !!
Do you think the signature adds value to it?. I haven’t seen any others with a signature like that.