This name is applied in gen- eral to silver medals of Thaler size, which bear representations of the Nativity.
There are, however, silver coins struck by Johann Georg I of Saxony in 1617 that bear the same name. They were issued in honor of his mother, and were intended as Christmas gifts.
Synonyms: Christfest Thaler
Source: Frey's Dictionary (American Journal of Numismatics, Vol. 50, 1916)