{"type":"firestarter.listing","listing":{"id":"lst_0KsQvU5y","product_name":"Model 46 Fountain Pen - Cathedral","category":"Fountain Pen - Model 46","description":"\n\nSELLING CONDITION: NEW OLD STOCK. This is the original 46 fountain pen design which has been retired. If you are interested in the current version of this popular pen, check out the 46 Cor collection. \n\n\n\n\n♦ Featuring one of our flagship materials, Cathedral. This acrylic features the look of stained glass, in rich hues of blues, reds, greens, and yellows that harken the image of stained glass found in cathedrals around the globe.♦ Dimensions:.590\" cap diameter.550\" upper barrel diameter .460\" lower barrel diameter5.25\" capped length6.65\" cap posted length (including nib)4.95\" barrel length (including nib).410\" grip section at thinnest pointweight without ink = .65oz / 18.43g♦ Takes a standard converter (one included). Ships with zippered pouch.♦ Features our special block threads at the end of the grip section. These smoother feeling threads are out of the way of your fingers. Placing the threads at this spot also limits the amount of air within the cap chamber, thereby helping to mitigate dry out. The design of the block threads also releases the air when you unscrew so as to not create a suction effect on the ink. ♦ Each fountain pen can be filled via long or short international cartridge, by converter, or via eye dropper. We recommend a little silicone grease on the threads if you use as an eye dropper. Barrel holds approximately 3.1ml of ink when eyedroppered.\n\n\n♦ Precision posting - when capping the post, the angle of the end of the barrel matches the angle of the interior of the cap to make for a solid grip when posting the cap on the barrel. ♦ Made in USA of long lasting, durable hard acrylic that is light weight. ♦ Lifetime warranty.  Shipped in one pen zippered pouch.","images":["https://cdn.shopify.com/s/files/1/0023/7679/4187/files/46CathedralFountainPen.jpg?v=1688653889","https://cdn.shopify.com/s/files/1/0023/7679/4187/files/46CathedralFPside.jpg?v=1688653892"],"price":106.25,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:47:19.942Z"},"share_url":"https://firestarter.network/l/lst_0KsQvU5y","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 <your Firestarter API key>","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_0KsQvU5y' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Model 46 Fountain Pen - Cathedral' and a budget_max comfortably above $106.25 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."]}}