"Following the 1919 amalgamation of suburban tramway trusts, an electrified tram service extended along Doncaster Road. Housing estates such as the 1919 Balwyn Park Estate, 1922 Hillcrest Estate and the Camberwell City Heights Estate, also 1922, quickly followed. These estates were built over by expansive suburban villas, set in fine gardens and along tree-lined streets. North Balwyn, largely constructed since 1933, was typified by even grander houses, many of them in the 'ocean liner' style and seen at their most distinctive in the Riverview Estate." (Source; 'Balwyn' in eMelbourne)Portions of subdivision plan mounted on both sides of cardboard sheet. Coloured pink, probably to show allotments sold. Area covered: Doncaster Road, Mountainview Road, Panoramic Road, Cityview Road, Longview Road, Riverview Road, Hillview Road, Bulleen Road. Includes location diagram showing railway lines and existing and proposed tram routes.Cardboard backing has advertisement for "Tillock's soluble coffee"subdivision plans -- camberwell (vic.), camberwell city heights subdivision