This lamp was is from the Thomas Edison Era of lighting. It is an articulating/adjustable wellness/physiotherapy lamp that belonged to the Ames family (colonial timber industry barons see link below).
https://en.wikipedia.org/wiki/Alfred_K._Ames
This early 19th century lamp is in original unaltered working condition and uses modern bulbs. Online information on how these lights were used back in the day is in the links below:
https://rarehistoricalphotos.com/history-of-light-therapy-1900-1950/
https://digitalcollections.nypl.org/items/510d47de-518c-a3d9-e040-e00a18064a99
Weighs approximately 20 pounds and will ship USPS ground local pickup possible as well.