Cohn's products were often transported and delivered in uncovered vans. Cohn's introduced green bottles for their lemonade products following the discovery that lemonade was altered when exposed to sunlight.
This lemonade bottle, from around 1964, also shows the change from the 32oz to the 900ml measurement, heralding the adoption of the metric system in Australia.
Further Information
This is a close up of the Cohns badge on a green screw top bottle. Note that bubbles have been added to badge.
After the introduction of the ceramic paint labels, naming the contents was moved to the crown seal or the screw top. This meant one less machine was used in the bottling process.