Don't use calligraphy ink in your fountain pen
Dirty fountain pen You are new to the fountain pen hobby and are ready to get started with all of that pretty ink. You are on the lookout for shading and sheening, for just the perfect color of yellow to match your fountain pen, and you see a bunch of ink at the craft store, but hold off buying the first "ink" you see, as not all ink is safe for your new hobby. It's essential ...