Flow meters are the tools used to gauge the mass and the volumetric flow of fluids and gasses in a pipe. Relying on the flow meter material and type of fluid flow and use in various fields. The flow meters are split into differential pressure flow...

If you'd asked me a year or two ago to have a look at a wood-bodied fountain pen, you'd not have gotten much more than polite interest.
I mean, where do you find wood in vintage pens or among modern makers? Wood, I figured, was for home hobbyis...