No amount of praise would be sufficient for this highly recommended site to which I have placed a link below. It is full of masses of information, fantastic photographs accompanied by a sparkling script containing many amusing stories and thoughts. It is a must for you all.
Many thanks to Barry Hilton for advising me, and you all of this real gem of a site. Barry draws our attention to his section, number 86 'BR Railway Roundabout 1' which maintains the extremely high quality to be found throughout this location.