I see Weimaraner for sure. First breed I thought of. But she looks a little less streamlined and more brown than grey, so maybe some lab too?
I've always thought she had a weimer-ish air about her too, although the planes of her face aren't quite right and her ears are a bit short. The brown could most certainly be lab, although she's lighter and more reddish than most labs I see. I don't think there's a mix breed out there without some lab thrown in
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