The Pamelor Nortriptyline PENLIGHT is a rare and unique collectible item that combines the functions of a pen and a flashlight. This promotional item was used in the pharmaceutical industry for advertising purposes, making it a valuable piece for collectors interested in medical and promotional items. The pen is made of plastic and metal, with a mechanism that allows it to function as both a writing instrument and a light source. Its vintage design and limited availability add to its appeal for those interested in the history of pharmaceutical advertising and promotional items. It is NOT WORKING. I’m sure the battery is very dead. It’s from 1980’s