Old Lens Catalog Of Historical Interest

A very interesting and informative document is the 1925 American Optical Wellsworth Lens Catalog found here:

http://www.opticalheritagemuseum.org...alogue1925.pdf

I found it interesting that it provided the Telegraph Codes to order lenses (never knew) and the text starting on page 11 very informative.

I can also recommend The Optical Heritage Museum web site for los of really good stuff:

http://www.opticalheritagemuseum.org...blications.htm

Old Lens Catalog Of Historical Interest