The marshmallow manipulation is hand poured in small batches to ensure a unique blending of colors and chatoyance in key areas making each pen unique and one-of-a-kind. To my knowledge, there were only a handful of these made.
Goulet Pens Blog - The Goulet Pen Company
2023 SELMY Resin Fountain Pen #6 BOCK Nib F/0.5mm M/0.7mm Nib Writting OfficeeNR
Handmade 'cool Tone Primary Manipulation' Fountain Pen
Scriveiner Classic Black Lacquer fountain Pen - Medium Nib
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Nibs – Birmingham Pen Company
Writing Instruments - Fountain Pens - Page 1 - Anderson Pens, Inc.
コレクションのbock nibs, 公認海外通販サイト
2023 SELMY Resin Fountain Pen #6 BOCK Nib F/0.5mm M/0.7mm Nib Writting OfficeeNR
fountain pens – Hand Over That Pen