1910: exhibits by Prof. Dr. H. Konen

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List of all exhibits from the catalogue for this exhibition:

Exhibit no.ExhibitorExhibit titleSectionPictureCatalogue
373 Prof. Dr. H. Konen Band-Spectrum of Nitrogen IV. Scientific and Technical Photography and its Application to Processes of Reproduction   catalogue page
373 Prof. Dr. H. Konen positive Brand-Spectrum of Nitrogen enlargement of photos taken with small Rowland concave grating IV. Scientific and Technical Photography and its Application to Processes of Reproduction   catalogue page