Can anyone help with information about this brooch?

I purchased this beautiful brooch at the Goodwill. I'm having a lot of difficulty identifying the makers mark and the signature. The signature is in the upper left top and the embossed clover mark is in the lowere left of the pin. The seed pearls may be authentic. But Im not 100% sure about that. But there are some that are not exactly the same color or tone as the majority. It kind of looks like the signature is partially warn off. Any information would be appreciated. Thank you :)