Provides details of the rails used by the SEC and ESCo in Ballarat.Yields information about the rails used by the SEC.Heavy cardboard folder with advertisement for Yeaston yeast tablets on outside of both covers, containing eight SEC drawings, Ballarat Branch, of rail cross sections and dimensions. Secured into binder with metal folding clips. Cannot be removed without dismantling the folder. Brown tape covers the edge of the folders and the centre. Rail size Drg No. Date 1. 70lb Tee BA6756 23/3/1953 2. 80lb Tee BA6748 27/6/1951 BHP Section 801 3. 80lb Tee BA6755 18/3/1953 BHP Section 803 4. 83lb Tram BA6759 8/4/1953 Has been taped together at about 3/4 length. 5. 87lb Tram BA6760 9/4/1953 6. 90lb Tram BA6758 31/3/1953 7. 90lb Tram BA6746A 29/7/1955 BSS No. 1 Rail 8. 96lb Tram BA6761 21/4/1953 1c rail Drawings all finally signed off 3/8/1955 by Ballarat Branch Manager, H. W. Linaker.tramways, trackwork, rails, yeaston