Friday, July 5, 2024

Happy 120th anniversary to the inner cap!


The humble but indispensable inner cap was patented 120 years ago today. One of August Eberstein's  greatest contributions to fountain pen design, US patent 764227.

1 comment:

Saltire Turquoise said...

Thanks for this. Inner caps, around the World, continue to make things just that little bit better.