[1][6] These three interests, which Cobb developed with great assiduity, ran alongside his professional practice.
In his younger adult life, Cobb began collecting photographs from a range of sources but mostly from everyday places such as markets and second hand shops, some of which were situated close to his workplace in the City of London.
[8] The Conway Library at the Courtauld Institute of Art also holds images from his collection.
[9] Linked to the main subject matter of his collection, Cobb pursued his interest in ecclesiastical buildings.
[2] His scholarly contribution to the study and appreciation of cathedrals and churches, as well as the substantial number of photographic images, has been recognised through his many published works and the tributes paid by his peers to his expertise and influence.