Waterman Fountain Pen
Though efforts to invent a fountain pen occurred much earlier, efficiently functioning fountain pens were developed in several places by several different inventors from the 1850s through 1880s.
The development of free-flowing ink was the invention of the American insurance salesman Lewis E. Waterman of New York City who employed the capillarity principle to allow air to induce a steady and even flow of ink in his fountain pen. Waterman’s mechanism allowed a careful balance between ink leaving the pen and air entering.
Postcard Paper：Cotton paper 300 gsm
Postcard Dimensions：14.8 x 10.5 cm