Uncategorized · Fountain Pens
Opus 88 Demonstrator Fountain Pen - Mocha Mousse (Limited Edition)
Opus 88 · sold by The Goulet Pen Company · $150.00 · in stock
The Opus 88 Demonstrator fountain pen is a truly unique writing instrument. This large non-postable pen is an eyedropper-filled pen with a piston operated shut-off valve. It has a black clip and a black stainless steel #6 JoWo nib and includes a glass eyedropper to fill the pen with your favorite ink. Made with a translucent dark brown finial and end cap, and an opaque light brown cap and barrel, Mocha Mousse is a limited edition design for 2025. An ebonite piston and rubber gasket seals the feed off from the barrel when fully depressed, reducing the risk of leakage and burping. By unscrewing…
| Option | Price | Stock | |
|---|---|---|---|
| Extra-Fine | $150.00 | in stock | Buy at The Goulet Pen Company → |
| Fine | $150.00 | out of stock | |
| Medium | $150.00 | out of stock | |
| Broad | $150.00 | in stock | Buy at The Goulet Pen Company → |
Prices and stock from www.gouletpens.com’s public catalog, last checked 2026-11-01 10:03 UTC; the store’s checkout shows the final price. Agents: JSON at https://api.kaupia.com/v1/product?id=kp:64896e32-1255-4dbe-bb1d-819cc8cb24da; buy with POST /v1/checkout or MCP create_checkout.