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Model of a Batavian Coastal Telegraph, Model of an optical telegraph. It consists of a propped mast with a window and a flag stem. One of the four braces is equipped with
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Best lens for Technical Photography: Coastal Optical 60 mm TESTED – Cultural Heritage Science Open Source
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SLR Lens for UV-VIS-IR Bands | Jenoptik Optical Systems LLC, Biophotonics | Jan 2008 | Photonics.com
Coastal Optical vs Voigtländer vs Nikon Z vs AF Micro-Nikkor: a 50-60mm shoot-out: Third Party Lens Talk Forum: Digital Photography Review
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