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Creata pagina con 'In 1937 the Superna model was introduced, with a variation of back lever filler, in which the lever was equipped with a small ball on the outer extrem...'
In 1937 the [[Superna]] model was introduced, with a variation of [[levetta di fondo|back lever filler]], in which the lever was equipped with a small ball on the outer extremity and mounted vertically in a semispheric alluminum structure located on the bottom of the pen. The ink loading was carried out by removing the back cover to access the the lever and operating it through the ball.