Yields information about the process of preparing lists Ballarat tramcar mileage records and their use in previous locations. Demonstrates the way the Victorian Railway Institute advertised for members.List of three Ballarat Tramcars mileages (19, 25 and 37) mileages in Ballarat, Melbourne and Geelong written on the back of an advert for the Victorian Railways Institute seeking membership on the basis of discounts received at shops, uses a 10% discount on a suit against the cost of a VRI Discount card - titled "Simple Mathematics" Item was contained within Reg Item 5507 - Foolscap binder with green covers, black binding edge and metal clips - see btm5507-list.pdf for actual location.tramways, trams, vri, mileage, 19, 25, 37