One of the main information sources used to reconstruct the history of brands and models is that one coming from the advertisements that the various companies published in newspapers and magazines, from invoices or commercial documents found or from the (unfortunately few) original catalogs. All the material available to the authors of the site has been scanned and published on the site in the various sections (in particular [[:Category:Ads|advertising]], [[:Category:Documenti|documents]], [[:Category:Cataloghi|catalogs]]), together with the material made available by all those who have contributed by providing scans or material to be scanned. | One of the main information sources used to reconstruct the history of brands and models is that one coming from the advertisements that the various companies published in newspapers and magazines, from invoices or commercial documents found or from the (unfortunately few) original catalogs. All the material available to the authors of the site has been scanned and published on the site in the various sections (in particular [[:Category:Ads|advertising]], [[:Category:Documenti|documents]], [[:Category:Cataloghi|catalogs]]), together with the material made available by all those who have contributed by providing scans or material to be scanned. |