I don't think so. There are rare items that you don't see a lot of and as such, they won't show on Google if there weren't any postings.
Look at the following side by side comps. I'd be hard-pressed to consider that your item is fake! (Hyacinth's opinion is more than welcome for a second opinion.) The only thing yours doesn't have is the lozenge but hangtags can fall off so that doesn't prove anything.
Again, I don't believe it's fake but would love another opinion.
ETA: in looking at the side by sides, I notice that your cow has longer legs and either shorter ears or your cow has a larger diameter. The horns have a slightly different shape too.
This is why I love side by side comparisons. You can see so many details that might escape you otherwise.
You are SHARP! But here's a better picture in the light of day - the legs don't appear quite so long. Perhaps the shadowing effect made them look elongated in the previous picture.
lh4.googleusercontent.com/-90ZfuhzMjr0/VHn5oCBB2oI/AAAAAAAAurw/WifAnIW6luY/w1035-h582-no/20141129_085136.jpg
If in fact the legs ARE shorter or longer than the one you have, does that prove it's a fake, or could there have been variations in the genuine ones?