Modifiche

| 1940 || Introduced the [[Laidtone Duofold]] model, (also called ''striped'')

| 1940 || Introduced the [[Laidtone Duofold]] model, (also called ''striped'')

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| 1941 || Introduced the [[51]] model e the same name ink

| 1941 || Introduced the [[51]] model e the ''51 ink''

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| 1946 || Introduced the ''[[Red band filler]]'' on [[51]]

| 1946 || Introduced the ''[[Red band filler]]'' on [[51]]