Jamin Darlot 'Cone Centralisateur' Portrait Petzval 500mm F4.5

Chips to peripeheries of rear element, balsam seperation to front element

Notes: The Cone Centralisateur lens design is a petzval design with a larger back element to avoid reflections. It was a famous and sought after in the late 19th century. It was the flagship lens for Jamins workshop in the early 1850s and 1860s in Paris. It was convertable for portrait and also as a landscape useage (paysage).