Opus 88 Fountain Pen Nib Units / No. 12 (JoWo No. 6)
Opus 88 · sold by The Gentleman Stationer · $23.40–$40.00 · in stock

Fountain pen nib unit featuring Opus 88 branding, compatible with Opus 88 Demonstrators, Jazz, and Harmony fountain pens. Each nib unit threads into the section of your Opus 88 fountain pen, and includes a replacement o-ring for use with Opus 88's Japanese-style eyedropper filling system. Made in Germany
Prices and stock from shop.gentlemanstationer.com’s public catalog, last checked 2026-11-02 19:30 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:d8cebb5d-cbb3-43aa-8840-17ab097d4872; delivered price GET /v1/quote; order with POST /v1/orders or MCP place_order.