Extremely Rare Original De Khotinsky 1800s Handmade Lamp Bulb Light Bulb

Description

Up for auction is a De Khotinsky handmade lamp bulb. It is one of the oldest bulbs in this estate lot (I believe). The base is brass and porcelain with holes. The label is handwritten but faded so I couldn't make it out. The filament is broken. See photos for condition. It has not been cleaned. A remarkable fragile remnant of the industrial revolution! Measures approx 5 inches long.
This bulb is part of a collection of bulbs that came from a large New England Victorian home, it was found in a wooden box. Most contain their original paper, labels, and soot (they have not been cleaned or tested). I don't believe they were collected but accumulated for use in the home and then forgotten. All are being listed for sale now.