On July 25, 2020 my Green TWSBI Diamond 580AL (Fine) joined its comrades when it was filled with TWSBI 1791 Prairie Green. The pen was in use for one year and was emptied and cleaned on June 21, 2022, saying good-bye to its fellows.

Thoughts Before Filling

This took some consideration. There is only one green 580AL but two shades of green TWSBI ink. I decided to put the emeralds together leaving prairie green for this pen.

Thoughts After Cleaning the Pen

I found that I used this more than I anticipated. Green is not my favorite shade, but there was a brightness to this that made it fun to use.