« Reply #11 on: September 28, 2014, 07:25:01 AM »
Received Dr. Funke's reply as follows:
The 'ODOL' base mark does not help to determine the age of bottles. It appears earlier than 1912 and even after 1945.
Some very early bottles show a pressed "DR Patent" (Deutsches Reich Patent).
Pre-1945 bottles without mark are only known as advertising items and are of ceramic material.

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Pamela
Die Erfahrung lehrt, dass, wer auf irgendeinem Gebiet zu sammeln anfängt, eine Wandlung in seiner Seele anheben spürt. Er wird ein freudiger Mensch, den eine tiefere Teilnahme erfüllt, und ein offeneres Verständnis für die Dinge dieser Welt bewegt seine Seele.
Experience teaches that anyone who begins to collect in any field can feel a change in his soul. He becomes a joyful man filled with a deeper empathy, and a more open understanding moves his soul.
Alfred Lichtwark (1852-1914)