Assertion: fountain pen's nib | /r/AtLocation | a fountain pen
Facets:
value: in 1830
type: TEMPORAL
Source sentences:
text: In 1828, Josiah Mason improved a cheap and efficient slip-in nib in Birmingham, England, which could be added to a fountain pen and in 1830, with the invention of a new machine, William Joseph Gillott, William Mitchell, and James Stephen Perry devised a way to mass manufacture robust, cheap steel pen nibs (Perry & Co.).