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The ''Uhlmann's Eterno'' initial production brand recalled very closely the Germans and Americans models of the same period. Their pens were engraved with the company name on the barrel, along with its the logo, consisting of a triangle with an eye on the inside. Even the nibs were marked with the words ''Uhlmann's  Eterno'' on two lines interspersed by the same logo, also made as a simple rayed triangle in earlier models, but that logo was registered in 1940 ({{Marchio|62397}}).

The ''Uhlmann's Eterno'' initial production brand recalled very closely the Germans and Americans models of the same period. Their pens were engraved with the company name on the barrel, along with its the logo, consisting of a triangle with an eye on the inside. Even the nibs were marked with the words ''Uhlmann's  Eterno'' on two lines interspersed by the same logo, also made as a simple rayed triangle in earlier models, and such a kind of logo was registered in 1940 ({{Marchio|62397}}).