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<noinclude></noinclude>Italian company. There are no known accurate data on the origins of this company, whose name, as reported by Letizia Jacopini in his book  (''"La storia della stilografica in Italia"'') would be an acronym for ''"Consorzio Italiano Stilografiche e Affini"'', a group of companies (presumably the district of [[Settimo Torinese]]) active in the late '30s and early to mid '40s. In fact the trademark is registered in Turin in 1944 ({{Marchio|90707}}) as ''"Casa Italiana Stilografiche e Affini di Carlo Caramello"''. He had previously (1939) also recorded the trademarks ''[[Amica]]''  ({{Marchio|61381}}) and  ''[[Ariana]]'' ({{Marchio|61382}}). It is unclear whether this is a case of coincidence, but it does not seem likely.

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</noinclude>Italian company. There are no known accurate data on the origins of this company, whose name, as reported by Letizia Jacopini in his book  (''"La storia della stilografica in Italia"'') would be an acronym for ''"Consorzio Italiano Stilografiche e Affini"'', a group of companies (presumably the district of [[Settimo Torinese]]) active in the late '30s and early to mid '40s. In fact the trademark is registered in Turin in 1944 ({{Marchio|90707}}) as ''"Casa Italiana Stilografiche e Affini di Carlo Caramello"''. He had previously (1939) also recorded the trademarks ''[[Amica]]''  ({{Marchio|61381}}) and  ''[[Ariana]]'' ({{Marchio|61382}}). It is unclear whether this is a case of coincidence, but it does not seem likely.

There are similarities between the celluloid used for pens branded [[CISEA]] and some [[Olo]] and [[ASCO]] models, which has given rise to the possibility of some connection with the [[Aurora]], but only for the low-end  production, an hypothesis supported by the presence of fountain pen marked  ''Amica Cisea'', with the ''[[Amica]]'' trademark,  believed to have been used by [[Aurora]] for the production of advertising pens, because of the identity of the finish and metal detailing found on these pens with those of [[Olo]].

There are similarities between the celluloid used for pens branded [[CISEA]] and some [[Olo]] and [[ASCO]] models, which has given rise to the possibility of some connection with the [[Aurora]], but only for the low-end  production, an hypothesis supported by the presence of fountain pen marked  ''Amica Cisea'', with the ''[[Amica]]'' trademark,  believed to have been used by [[Aurora]] for the production of advertising pens, because of the identity of the finish and metal detailing found on these pens with those of [[Olo]].