Zwainziger

1.  Zwainziger. A name given to an early type of the Kreuzer of Tyrol on account of its value, which was twenty Berner. These coins are without date, and bear on one side an eagle, and on the reverse a cross.

2.  Zwanziger. A name applied to the silver pieces of twenty Kreuzer, or one third of a Gulden, formerly in circulation in Bavaria, Salzburg, Austria, etc. The peasantry frequently soldered a loop to them and used them as buttons, hence the nickname " Knopfzwanziger."