London fireman wins King ' s Cup with window box flowers . Mr B J Hethersay , a London fireman living at Aquinas Street , Stamford Street , and serving on a fire float at Blackfriars Bridge , has won the Silver Challenge Cup presented by the King for the first time to the North Lambeth and Kenngton Gardens Guild . He won the trophy with a window box display of flowers . the CUp has been presented for competition among tenants of the Duchy of Cornwall Estate at Kennington . Photo shows , Mr B J Hethersay with the King ' s Challeng Cup in front of the prize winning window . 20 July 1936