Uncategorized · fountain pen
TWSBI Obsidian Fountain Pen
TWSBI · sold by Yoseka Stationery · $120.00 · in stock
The TWSBI Obsidian is the fourth installment in the series of TWSBI's acrylic tortoise material pens that have a small ink window near the grip section, and are paired with a rose gold trim. Released in 2021 and earlier, the Draco, Aurora, and Kai were the Obsidian's predecessor as a limited run piston filling fountain pen in TWSBI's limited "Classic" model. The pen is fitted with a #5 size nib, the same nib used on TWSBI's Diamond 580. It comes with a benchmark piston ink-filling mechanism, and t he nib is smooth with a little feedback. The Obsidian fountain pen is only available in nib…
| Option | Price | Stock | |
|---|---|---|---|
| Extra Fine | $120.00 | out of stock | |
| Fine | $120.00 | out of stock | |
| Medium | $120.00 | out of stock | |
| Broad | $120.00 | in stock | Order via Kaupia → · Buy at Yoseka Stationery |
Prices and stock from yosekastationery.com’s public catalog, last checked 2026-11-02 18:39 UTC. “Order via Kaupia” shows the delivered price to your zip (item + the store’s shipping + est. tax) and places the order through Kaupia with a delivery guarantee; “Buy at the store” goes to the store’s own checkout. Agents: JSON at https://api.kaupia.com/v1/product?id=kp:5897259a-235d-4d0b-96b3-3bc7e54c6fdb; delivered price GET /v1/quote; order with POST /v1/orders or MCP place_order.