On July 25, 2020 my Prussian Blue TWSBI Diamond 580ALR (IM) joined its comrades when it was filled with TWSBI 1791 Sky Blue. The pen was in use for one year and was emptied and cleaned on May 23, 2022, saying good-bye to its fellows.

Thoughts Before Filling

I’ve wanted to use this new ink, and I’ve really wanted to use this new pen. I hope to enjoy this and write this one dry first.

Thoughts After Cleaning the Pen

It turns out that I enjoy the ALR a bit more than just the AL: the ribs on the section add something I enjoy. The ink was a lovely shade of blue that lifted my mood every time I used it. I didn’t use this pen more often partly to conserve the experience (which is silly since I could just refill the pen) and partly because the nib’s stoke is wider than I like to use on a regular basis.