| Riga 1: |
Riga 1: |
| − | {{BrandCrono}} | + | {{BrandChrono|Williamson}} |
| − | |- | |
| − | | 1899 || ''Williamson Pen Co.'' is founded
| |
| − | |-
| |
| − | | 1906 || ''Riccardo Amisani'' begins his reseller activity
| |
| − | |-
| |
| − | | 192x || Amisani starts producing pens in Italy
| |
| − | |-
| |
| − | | 193x || ''Società Anonima Penne a Serbatoio Williamson'' is founded
| |
| − | |-
| |
| − | | 1951 || Williamson ceased operations
| |
| − | |-
| |
| − | {{TabEnd}}
| |