It certainly has resemblance to a Chevalier lens (knob details differ)
Please see this link and read the text... http://www.spiracollection.com/spira...c?OpenDocument
And see image below from D'Agostini's book, Old photographic lenses.
Dan
It certainly has resemblance to a Chevalier lens (knob details differ)
Please see this link and read the text... http://www.spiracollection.com/spira...c?OpenDocument
And see image below from D'Agostini's book, Old photographic lenses.
Dan
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www.antiquecameras.net/blog.html
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