Paris Porcelain Oil Lamp converted to Electric

I bought this lamp several years ago at a yard sale. The gentlemen told me it had been in the family and that it was an antique. I showed pictures to an antique dealer who told me it was a Paris Porcelain oil lamp that had been converted to an electrical lamp. I just wonder how rare, if at all, this lamp is. I located one lamp on Ruby Lane, that was still in its original oil lamp condition, but the painting was a totally different style. My lamp has a beautiful, creamy white finish, no cracks. The flowers may be a transfer, I'm not sure, but my research indicates that transfers are sometimes combined with original hand painting. If anyone has any information about this lamp please share! Thanks so much.