https://contentpool.wirtschaftsverlag.at/files/uploads/image...
From the look it is a half-liter bottle (we usually buy cream like this), there are 1 liter bottles for milk that look almost the same.
However they don't have Pfand and are not reused at the moment [1]. At least not comercially. They make great containers for sugar or flour. According to the source they will start the reusing "beginning 2020".
1. https://www.spar.at/nachhaltigkeit/produkte/verpackungen/meh...
Which leads to sort of funny situations: locally it's been about 20 years since the milkman made his last round. Now there's again a company starting to do a similar thing (bring bottled milk/juice, local farmer's products to your door weekly) and some people who don't know better consider it revolutionary, and the poor company can't keep up with demand :)
What is a scuff ring by the way? Is it this ring that tears off from plastic caps at e.g. Coca Cola bottles when opening them?
It looks like the bottles rub against each other at that point, and it indicates the bottle is old/has been used a bunch of times. Is there a German word for it?
I will look out for them.
That movie was the first time I learned about "milkman" being a job. We had glass bottles that we filled ourselves at a self-service station that a farm just outside the city set up.