{"product_id":"diamine-archival-registrar-s-blue-black-ink","title":"Diamine Archival Registrar's Blue-Black Ink","description":"\u003cp\u003eIron gall based Blue-Black Archival ink which is the industry standard for permanent archival ink in the UK as used by many registrars.\u003c\/p\u003e\n\u003cp\u003eDue to the Iron Gall base, we suggest flushing out your pen regularly when it is used with this ink, we would advise that you use this with caution when using with a fountain pen, please do not leave in the pen for long periods of time. However we are told by Diamine that the composition is much safer to use in fountain pens than the 'traditional' iron gall inks.\u003c\/p\u003e\n\u003cp\u003eAvailable in 30ml glass bottle or 100ml plastic bottle.\u003c\/p\u003e","brand":"Pure Pens","offers":[{"title":"30ml","offer_id":30415049883725,"sku":"","price":9.58,"currency_code":"GBP","in_stock":false},{"title":"100ml","offer_id":30415049916493,"sku":"","price":12.08,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0013\/9807\/9565\/products\/diamine-archival-registrars-blue-black-ink-115085.jpg?v=1622558645","url":"https:\/\/www.purepens.xyz\/products\/diamine-archival-registrar-s-blue-black-ink","provider":"Pure Pens","version":"1.0","type":"link"}