It was also standard with glass milk bottles, in the UK at least.

UK glass milk deliveries still exist. We have milk delivered 3 times per week. (that's the cadence of the milk company, not our choosing) and until recently within last 6 months ish) ALL quantities were delivered an 1pt returnable glass bottles. now they deliver typical 2pt and 2L PET containers which is handy for the fridge but if you order a 1pt you still get glass (and sometimes multiples if they have a supply chain issue like when they changed recently from 4pt to 2L for the same cost :/ )