Where is the oldest camera in the world?

The following auction information about this camera is for your reference:

The oldest camera in the world, built in 1839, won the "honor" again. After being auctioned for nearly 800,000 dollars, it became the most expensive camera in the world. According to American media reports, Westchester auction house announced that this French-made camera was bought online by an anonymous person for $792,333. Peter Kern of the auction house said that the camera was made of cork and weighed about 5 -6 kilograms. It was discovered by a professor in an attic in Germany.

This camera uses the old-fashioned Gaelic silver plate photography, that is, the image is directly exposed on a silver-plated metal plate that is easy to be exposed to light, which may have been manufactured before August 1839. It was in this year that its designer louis Daguerre, a Frenchman, announced that he had invented the silver plate photography technology. After identification, the camera is still in production and has not been modified. Because it may be the oldest camera in the world, experts estimate that its transaction price is expected to exceed $65,438 +0.36 million. The auction will be held in Vienna on May 26th. According to reports, at present, only about 10 cameras in the world use silver photography, and most of them are in museums.