Hi!
A quick perusal of ebay's suggestions threw up some interesting things this morning -
http://www.ebay.co.uk/itm/English-OrganCases-1921-1st-Edition-Andrew-Freeman-Church-Furnishings-/370922168966
This is the book which illustrates the Comper case of Carshalton Parish Church (referred to in the index as Croydon), the instrument currently being rebuilt by Willis
http://www.ebay.co.uk/itm/Little-Brown-Church-In-The-Vale-1968-Airline-Organ-No-11-4583-/390693277956
"The Airline Organ Course" clearly a link between organists driving organs and piloting or driving large transport vehicles
http://www.ebay.co.uk/itm/Pipe-Organs-Churches-Chapels-Derbyshire-Derwent-Ecclesbourne-Vall-9780907758884-/141108924970
This is possibly a valuable guide to a diminishing heritage with so many chapels and small churches closing
Best wishes
David P