{"product_id":"cistern","title":"Cistern","description":"\u003cp\u003eCistern is part of the Keystone Formula fountain pen ink line, our traditional dye-colorant ink. \u003cspan\u003eThe 50mL volume will provide approximately 62 standard converter refills assuming a 0.8mL draw.\u003c\/span\u003e\u003cspan\u003e Our ink swatch is produced with a cotton swab on Tomoe River paper.\u003c\/span\u003e\u003c\/p\u003e","brand":"Fountain Pen Ink","offers":[{"title":"50mL Glass Bottle","offer_id":47694567080178,"sku":"PN100925","price":17.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1237\/1088\/files\/Cistern.jpg?v=1750967480","url":"https:\/\/www.birminghampens.mom\/products\/cistern","provider":"Birmingham Pen Company","version":"1.0","type":"link"}