Antique hanging lamp

This came from my wife's father, who had it in his parent's home in Rochester NY home where he grew up in the early '30s; so late 1800s - early 1900s sounds about right. My wife's sister remembers him mention it was originally gas and converted to electric some time later. I've had to replace the power cord and what always struck me was the socket did not match the era of electric lamps of the day in relation to the glasswork, so the gas explanation seems to fit.

From what I've been able to find, many of these style lamps were common back then; particularly with the advent of Tiffany. There is no makers mark we can find, so we have been very diligent in trying to find a match to learn more of its history. We were inspired to post our lamp from Marty's post here:
https://www.collectorsweekly.com/stories/260523-antique-hanging-lamp-from-1800s?in=749-unsolved-mysteries