The Vintage Flame Photometer Parts, with the Tung-Sol PD-1901-S1s, are collectible scientific instruments from the United States. These parts are essential components for restoring and repairing vintage flame photometers, which were commonly used in labs for measuring the intensity of light emitted by various materials when heated. The Tung-Sol PD-1901-S1s are highly sought after by collectors and enthusiasts alike, adding value to any science and medicine collection.
eBay