File:Curtagon 1 2,8 35 mm lens - Schneider-Kreuznach-4641.jpg - Wikipedia
Pacific Rim Camera Catalog
Lens SCHNEIDER-KREUZNACH XENAR f : 4,5 F 21 Cm Germany - Etsy Finland
Schneider Kreuznach Super Angulon 47mm f/5.6 MC Multicoating Large Format Lens from Japan (C2385) | Big Fish J-Camera (Big Fish J-Shop)
Phase One Lens Test
Schneider-Kreuznach Tele-Xenar 360mm f5.5 lens in Compound III shutter – The gear shop.
How to determine the age of a Schneider lens | Understanding the Relationship Between Camera Manufacturing Dates and Lens/Shutter Production - Vintagelens
Zeiss design variations & Serial numbers
Schneider Kreuznach Super Xenar 50mm F/2.8 - Lens Review
Schneider Kreuznach Lens
EXC+++++] Schneider-Kreuznach Symmar-S 180mm f/5.6 Lens From JAPAN – AGRI STAR S.A.