Document blue Pelikan ballpoint refill
#25
by maxwellinked - opened
Add Blue alongside Black for the Pelikan 337 refill. The model, Medium 1.0 mm point, and ISO 12757-2 specification are unchanged.
Merged after verifying the one-line Archive_Specifications.md change: Black to Black and Blue; all other ballpoint specifications remain unchanged.
maxwellinked changed pull request status to merged