Rumple apparently has quite a collection of wands, presumably some of which came from other fairies. The fact that all of them look different but this one does look identical is a bit of an issue. It also seems to be the one that Rumple favors using for other tasks–like when he takes the magic from the mine to seal off the well.
But I just can’t math out a way for him to have killed Ella’s godmother before Robin Hood stole the wand. It just doesn’t work with everything else that has to fall into place around those events. And it’s all interconnected.
Keeper of Belle's Gold magic, sand dollar, cloaks, purple FTL outfit, spell scroll, library key, copy of Romeo and Juliet, and cry-muffling pillow, Rumple's doll, overcoat, and strength, and The Timeline. My spreadsheet: https://drive.google.com/file/d/0B6r8CySCCWd9R0RUNm4xR3RhMEU/view?usp=sharing