sentences:  31518 flying a Union Jack and bearing the notice "Flyer 1881-1961".In 1962, the Westerham Valley Railway Association, born of a merger between two local interest groups, the Westerham Branch Railway Passengers' Association and the Westerham Valley Railway Society, began to investigate the possibility of re-opening the line, staffed by volunteers, for commuters on weekdays and as a heritage railway at weekends between April and October.British Railways offered the ownership of the line for £30,000 on the basis that a commuter service would be provided, thereby allowing it to cease its subsidies of bus services which were now over-subscribed following the closure of the Westerham branch.