British Railway Standard Locomotive Owners' Group (BRSLOG) is a consortium of individuals and organisations concerned with the surviving and new "under-construction" British Railway Standard Classlocomotives engineered by Robert Riddles. This group meets twice a year at various venues and is a valuable forum for cooperation as well as providing an interesting overview of the status quo of all these locomotives.
The consortium has made arrangements with the National Railway Museum for the supply of surviving British Railways drawings to members. From time to time, members recreate 'lost' drawings by reverse-engineering from existing components. Many of those lost drawings are for LMS designed components that were adopted without alteration. Examples being certain Brake Hanger Brackets and Flexible Stretcher Brackets.
Comprehensive arrangements exist within the BRSLOG for sharing knowledge of parts and patterns.