It could well be from that period - but I think some have been made since as well. It was a relatively standard design in the Belgium / Alsace / Czechoslovakia areas. The rather bright frit and colours suggest to me a later, rather than earlier date. I have not seen any that had gilded ornamentation on the foot, but it would not surprise me if some were decorated that way. You can also find examples where the paperweight top is separate, and sits in a cup on the pedstal.