{"type":"firestarter.listing","listing":{"id":"lst_o8rlmIkl","product_name":"Model 03 Iterum Fountain Pen - Black & Creme","category":"Fountain Pen - Model 03","description":"\n\n♦ Iterum is Latin for \"again\" or \"once more\" as the Model 03 fountain pen is designed in the spirit of our original Model 01 IPO. Straight sides with very subtle tapers down toward the ends. Mostly flat top and bottom with just a hint of the normal Franklin-Christoph bevel on each end. Right in our wheelhouse in classic black with a touch of color in the disk in the top.♦ Firm yet flexible rhodium clip with four diamond motif laser engraved. Orders will be for pens with clips included unless specially arranged to get one without.♦ Threads on the end of the grip for comfort. This also allows for precision posting so there is no creaking or wobbling when the pen is posted. ♦ Lightweight at .73 oz or 20.7 grams (with nib and converter un-inked)♦ #6 Size nib - with many tip options in factory or custom ground.♦ Cartridge - piston converter - eye dropper filling options. Barrel holds approximately 3.1ml of ink when eyedroppered.♦ Made in USA.\n\n\n♦ Dimensions:Smallest point of grip section: .391\" / 9.93mmLargest point of grip section: .480\" / 12.19mmBarrel center: .512\" / 13mmCap center: .575\" / 14.6mmCap length: 2.527\" / 64 mm\nFull pen when capped: 5.55\" / 140mmNib tip to barrel end: 5.010\" / 127mmCap posted full length to nib tip: 6.910\" / 176mm\n♦ Lifetime warranty♦30 day return policy.♦ Shipped with a Franklin-Christoph single pen zippered pouch (material varies) with an outer white thin box.  \n","images":["https://cdn.shopify.com/s/files/1/0023/7679/4187/files/03Black_Creme1.jpg?v=1753297803","https://cdn.shopify.com/s/files/1/0023/7679/4187/files/FPorderinclusions_0361beeb-79c8-4a80-9c6c-b0bfbee4dd3a.jpg?v=1753297803"],"price":160,"currency":"USD","in_stock":true,"inventory_qty":9999,"dynamic_pricing":false,"listed_at":"2026-06-18T20:47:20.787Z"},"share_url":"https://firestarter.network/l/lst_o8rlmIkl","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_o8rlmIkl' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Model 03 Iterum Fountain Pen - Black & Creme' and a budget_max comfortably above $160.00 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."]}}