{"product_id":"karel-martens-birthday-calendar","title":"Karel Martens: Birthday Calendar","description":"\u003cp\u003e\u003cspan\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\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e14 pages, 30 x 42 cm, hardcover, Roma Publications (Amsterdam).\u003c\/p\u003e","brand":"Peter Miller Books","offers":[{"title":"Default Title","offer_id":50071382687984,"sku":null,"price":50.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0637\/1596\/7216\/files\/IMG_0578_540x_3f2cff48-c990-406c-ad01-79be3d0e9a25.webp?v=1784577663","url":"https:\/\/petermiller.com\/products\/karel-martens-birthday-calendar","provider":"petermillerbooks","version":"1.0","type":"link"}