A 1oz silver with gold highlighting New Zealand issue. However, this one is magnetic and weighs 29.19g. Pictures below
Are there known fakes of this coin?
I don't know specifically about fakes that might be out there, but to my eye there's a bunch of small details on the script on the obverse that look off on your example. Combined with the weight/magnetic problem, you might want to try and get a hold of whoever sold it to you.
I've got a fake that I picked up. Mine's more obvious because it doesn't have the $1 on the reverse.
And actually, the font of the 1 in the $1 on yours seems to be different than the one in the catalog.
If it's a legit coin, it could be a plated one of these: https://en.numista.com/catalogue/pieces41877.html
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