{"product_id":"karel-martens-birthday-calendar","title":"Karel Martens Birthday Calendar","description":"\u003cdiv class=\"product-detail-description-text\" itemprop=\"description\"\u003eThe layered and multi-hued patterns in this birthday calendar – made to hang on your wall – are based on a single geometrical composition punched out of coloured cardstock in multiple directions. Originally conceived by Karel Martens in 1968, the design has remained unrealised until now.\u003c\/div\u003e\n\u003cdiv class=\"row product-detail-custom-fields-container\"\u003e\n\u003cdiv class=\"col-md-10 col-lg-6\"\u003e\n\u003ctable class=\"table product-detail-custom-fields-table\"\u003e\n\u003ctbody\u003e\n\u003ctr class=\"custom-fields-row\"\u003e\n\u003ctd class=\"custom-fields-value\" colspan=\"2\"\u003e14 p, ills colour \u0026amp; bw, 30 x 42 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"ROVA","offers":[{"title":"Default Title","offer_id":63833378029945,"sku":null,"price":40.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0620\/0213\/5204\/files\/260202.martens.9789464461046.jpg_500x708_98a58be5-ac89-4f40-8ee2-b44fe8ee492a.jpg?v=1782399627","url":"https:\/\/rovaeditions.co.uk\/products\/karel-martens-birthday-calendar","provider":"ROVA ","version":"1.0","type":"link"}