Magister Thaler
A silver coin of Sachsen-Weimar, struck in 1654 to commemorate the rectorship of the University of Jena, which was conferred on Prince Bernhard. See Madai, Vollstandiges Thaler-Cabinet. 1765-74. (No. 1491).
Source: Frey's Dictionary (American Journal of Numismatics, Vol. 50, 1916)