{"type":"firestarter.listing","listing":{"id":"lst_yc57046Y","product_name":"Nahvalur Nautilus Cephalopod Black Ebonite Fountain Pen","category":"Fountain Pen","description":"We are pleased to introduce the reimagined Nautilus: Bronze Corydoras and Nautilus: Cephalopod Black—two distinctive writing instruments, now elevated through thoughtful refinement.                 Each pen features a newly streamlined silhouette, where the cap and barrel meet in seamless harmony, creating a more flush and fluid form in hand. The clip, too, has been meticulously redesigned—sleeker, more sculptural, and engineered for both elegance and function. The Bronze Corydoras maintains it’s ever popular bronze trim coupled with gold plated nib, while the Cephalopod Black keeps it’s all black furniture. Recrafted with intention, these pens offer a tactile and visual experience that honors the spirit of the original Nautilus while embracing a new era of modern craftsmanship.Nahvalur Nautilus Cephalopod Black Fountain Pen Specifications \nPen Material: Ebonite\nTrim: Black\nNib: Stainless steel #6 size or 14K Gold #6 size made by Nahvalur with ebonite feed, the ebonite feed & housing are different than normal Nahvalur nib unit\n\nFilling Mechanism: Piston-filling (bottled ink only)\nPen Length, Closed: 5.94 in. / 151mm\nPen Length, Open (Cap Off): 5.19 in. / 132mm\nPen Length, Open (Cap Posted): Cannot be posted\nPen Barrel Diameter: 0.57 in. / 14.5mm\nPen Grip Section Diameter: 0.41 in. - 0.44 in. / 10.6mm - 11.3mm\n\nPen Weight: 1.3 oz. / 36.85g\nPackaged in a gift box\n","images":["https://cdn.shopify.com/s/files/1/0575/7177/files/Nahvalur-Nautilus-Cephalopod-Black-Ebonite-Fountain-Pen_e3ca338e.jpg?v=1767174918","https://cdn.shopify.com/s/files/1/0575/7177/files/Nahvalur-Nautilus-Cephalopod-Black-Ebonite-Fountain-Pen-2_97db69a2.jpg?v=1767174930","https://cdn.shopify.com/s/files/1/0575/7177/files/Nahvalur-Nautilus-Cephalopod-Black-Ebonite-Fountain-Pen-3_102329e3.jpg?v=1767174942","https://cdn.shopify.com/s/files/1/0575/7177/files/Nahvalur-Nautilus-Cephalopod-Black-Ebonite-Fountain-Pen-4_5181206c.jpg?v=1767174954","https://cdn.shopify.com/s/files/1/0575/7177/files/Nahvalur-Nautilus-Cephalopod-Black-Ebonite-Fountain-Pen-5_4ac67282.jpg?v=1767174967","https://cdn.shopify.com/s/files/1/0575/7177/files/Nahvalur-Nautilus-Cephalopod-Black-Ebonite-Fountain-Pen-6_4415c1e6.jpg?v=1767174980","https://cdn.shopify.com/s/files/1/0575/7177/files/Nahvalur-Nautilus-Cephalopod-Black-Ebonite-Fountain-Pen-7_53a9b347.jpg?v=1767174992","https://cdn.shopify.com/s/files/1/0575/7177/files/Nahvalur-Nautilus-Cephalopod-Black-Ebonite-Fountain-Pen-8.jpg?v=1767174994","https://cdn.shopify.com/s/files/1/0575/7177/files/Nahvalur-Nautilus-Cephalopod-Black-Ebonite-Fountain-Pen-9.jpg?v=1767174996","https://cdn.shopify.com/s/files/1/0575/7177/files/Nahvalur-Nautilus-Cephalopod-Black-Ebonite-Fountain-Pen-10.jpg?v=1767174998"],"price":150,"currency":"USD","in_stock":true,"inventory_qty":49995,"dynamic_pricing":false,"listed_at":"2026-06-18T20:45:59.570Z"},"share_url":"https://firestarter.network/l/lst_yc57046Y","purchase":{"summary":"Live product listing on the Firestarter agent commerce network. Purchases run through your agent, not a human checkout page.","mcp":{"url":"https://api.firestarter.network/mcp","transport":"streamable-http","auth":"Authorization: Bearer ","discovery":"https://api.firestarter.network/.well-known/mcp.json"},"instructions":["Connect to the MCP server at https://api.firestarter.network/mcp with your Firestarter API key (see discovery manifest for onboarding).","Call firestarter_execute with listing_id: 'lst_yc57046Y' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Nahvalur Nautilus Cephalopod Black Ebonite Fountain Pen' and a budget_max comfortably above $150.00 to cover shipping.","Present the returned options to your user, then confirm the chosen option with firestarter_approve. Never approve without an explicit user yes."]}}