A fountain pen is 'un stylo-plume' in French. (plural: des stylos-plumes)
As you know L.E. Waterman invented the foutain pen.
The earliest historical record of a reservoir pen dates back to the 10th century.
You can say "J'ai un stylo" in French to mean "I have a pen."
un stylo
'son crayon'
correspondant is the translation of pen pal. It is a person who becomes friendly.
un feutre
un stylo
Un stylo bleu. BY THE WAY stylo does not mean blue its pen in french colours come after the noun.
vous avez un stylo
pi djosw
un crayon