{"product_id":"abacus","title":"Abacus","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cspan data-sheets-root=\"1\"\u003eAbacus\u003c\/span\u003e is part of the Keystone Formula fountain pen ink line, our traditional dye-colorant ink. The 30mL volume will provide approximately 37 standard converter refills assuming a 0.8mL draw. 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":"Default Title","offer_id":47012353409266,"sku":"PN100861","price":17.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1237\/1088\/files\/Abacus.jpg?v=1730126441","url":"https:\/\/www.birminghampens.mom\/products\/abacus","provider":"Birmingham Pen Company","version":"1.0","type":"link"}