Jars were used to contain sauces, paste and oil for sale in the grocery stores. In the old days, it was these jars would be reused and everyone would bring their own bottles and containers to buy the stuff which are either wrapped in newspaper or tied together by a string of plant fiber (Cyperus Tegetiformis). There was no concept of being environmentally friendly but the general atmosphere of not being wasteful, objects would take on different function as they fit again and again until it disintegrates.
Sadly, the jars and the recycled bottles have been replaced by plastic ones, local grocery stores by supermarkets and our countryside replaced by landfills.