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Omeka MetsExport Plugin The software used to generate this document is called Omeka MetsExport, which operates as a plugin for Omeka. Documentation can be found at http://github/MetsExport/ Recorder, ionospheric Canadian Marconi Co. 1972.0351.001 Records on photographic film the virtual heights of reflection of the different regions of the ionosphere, for radio frequency pulse transmissions in the range 0.6 mc/s to 20 mc/s. (ref.1) LG17 <a href="https://collection.ingenium.ca/en/id/1972.0351.001">https://collection.ingenium.ca/en/id/1972.0351.001</a> Item changed by user 7 at 2024-08-27 13:41:25.Created: Identifier, Title, Model, Creator, Function, URLItem changed by user 7 at 2024-08-27 13:41:25.Imported from Background script