It's possible
that Gargamel10's lamp has an old Mogul socket (39mm diameter vs the common 26-27mm). If so, adapters may be purchased that will allow modern bulbs to fit.
If that isn't the problem, and Gargamel10 simply wants an antique-looking bulb to match his antique-looking lamp, Ebay is a good place to find either vintage bulbs or replicas of vintage bulbs.
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