I have the pleasure of working at Dickerman Prints Photo Lab in San Francisco and for events we sometimes bring in an old Korona View accordion-style camera to use in a demo.

According to Camerapedia:

The Korona View Camera was a wooden field camera made by Gundlach in Rochester, New York. From 1900 to 1903 a simpler variant was made in two sizes for the exposure formats 6.5×8.5″ and 8×10″, then a more sophisticated variant followed, offered in different sizes for a variety of formats.

This photograph is a closeup of the lens of the owner’s Korona View camera. If you look at the reflection in the lens, you can see a little bit of the photo lab.

 

Koronaview Antique Camera Lens
Koronaview Antique Camera Lens