Modifiche

During the '50s the company underwent a continuous decline in sales caused by the growing market share of the ballpoint pen. [[Bayard]] try a revival in 1956 with the [[Souverain de Luxe]] model, a streamlined pen, with [[hooded nib|covered nib]] and [[accordion filler]], produced with a metal cap. But at the time the writing instruments market was dominated by ballpoint pens; smaller models were introduced, such as the [[Bayard 20]], the [[Bayard 30]] and the [[Karting]], a [[cartridge filler]], but the decline continued relentlessly until the final closure in the mid of '70s.

In the early 50's the stylistic lines were uniformed and the various series took a similar form. All models moved to a fully streamlined shape losing the tapered conical ends. In this same period other models were launched as the [[Bayard 2000]] and a new version of the [[Niveauclair]], with this one other [[pump filler]] models  were produced like the ''Excelsior 507'', and also some [[accordion filler]] model (the [[Stylomine]] patent was expired) like the [[Fit]].