A quatrain written diagonally is nasta 'liq Calligraphy [slides]  British Library 

 - London  British Library 
 - 1 Slide  Col.  ill  35mm. 
 - Indian Miniatures Collection from British Library .
<br/><br/> IGNCA slides collection, cross reference Indian Miniatures in the India Office Library,p.80 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Painting-India-1633-42 A.D.<br/>Mogul painting<br/>Manuscripts, Persin<br/>Quatrain<br/>Calligraphy<br/>Floral decoration<br/>Dara Shikoha Album
<br/><br/><label>Dewey Class. No.: </label>BL-IM  / Add or 3129 68 f (65) K-82609