Zilles Printers was begun by Lewis Zilles in the early 1930s. It was in McKenzie Street Ballarat. His son Jeffrey also became a printer - letterpress, offset and screen printer. The business became Zilles Printers/Graphics and was in Armstrong Street and later Bell Street Ballarat. Purchase Order forms for Munro Engineers and Gyrocast Pty Ltd with the estimates for costs related to production of these - setting up plates, press, numbering and then bind, trim and back. It also must provide a declaration section for Sales Tax and their Registration Number.Two sizes of forms - each has two sheets per order, white and yellow. White sheet has perforations to allow it to be torn out of order book. Yellow sheet retained. scrap page with estimates of costs.Munro Engineers and their address. Purchase Order Numberzilles printers, purchase order forms, munro engineers, gyrocast, cost estimates, sales tax, printing plates, numbering