Roman Empire Maximinus II Daia As Caesar Æ Follis, Alexandria mint, 5th officina. Struck late AD 308-309. Wt.: 7.12g Obv.: Laureate head right Rev.: Genius standing left, holding patera from which liquor flows, and cornucopia; K-E/P//ALE. Ref.: RIC VI 100a. Ex Dr. Louis Naegeli Collection, Ex W. F. Stoeklin Collection. Obolos 9, March 25, 2018, Lot 437. Tag from the W. F. Stoeklin Collection. Dr. Louis Naegeli (1858-1951) Dr. Naegeli was an Ophthalmologist who lived in Switzerland in the late 19th and early 20th century. In February of 1914 he co-founded (with 5 other members) the Free Association of Zurich Numismatists. The organization is still going strong to this day. He was also friends with Dr Walter Stoeklin and seems to have sold him many coins from his collection before his death in 1951. A painting of Dr. Naegeli in 1901. His profession augenarzt (opthomatrist) is written on the paper he is holding. If you look closely at the paper Dr. Naegeli is holding in the painting you can see that he lived in Rapperswil (16 miles southeast of Zurich) at the time. So sometime between 1901 and when he founded a numismatic society in 1914 he moved to live on Naegelistrasse in Zurich which was presumable named after him. Since the above tag indicates that Dr. Naegeli lived in Zurich when Stoeklin purchased it we know the coin entered the Stoeklin Collection between 1901 and 1951 (when Dr. Naegeli died). Walter F. Stoeklin (1888-1975) I know many of us have coins from this excellent collection that goes well back into the 19th century. Most of the collection was offered up at auction back in 2018 and if you haven’t already I highly recommend you read some of the write ups done at the time on the collection. https://coinsweekly.com/the-story-of-the-stoecklin-collection/ A Further Provenance? Does anybody know of a collection known as the Ares Collection (Ares Sammlung)? It is written on the back of the tag above Dr. Naegeli’s name but I could find no evidence that Naegeli called his collection by this name. Edit to add: Ares mystery solved. See Valentinian’s response below.