Dating owens illinois bottles
This made it easy to identify their bottles at stores and bottle exchanges.
After you've found the mark on the bottle, classify it by type. Pontil marks typically indicate an older bottle, and older bottles are sometimes more valuable.
On e Bay, certain pontil bottles regularly sell for a few hundred dollars.
Scarcity is a significant factor in antique bottle values, and certain markings are very rare.
The more times a milk bottle was used, the more profit for the dairy. If a dairy had home delivery routes as well as store sales, then they needed to distinguish which bottles were for home and which bottles were for store use.
Stores usually charged a bottle deposit fee to encourage returns.