Are Linzer cookies from the U.S. or from Austria?

I´ve found contradictory information about Linzer cookies. Some sources say they´re Austrian; others say they´re from Milwaukee, Wisconsin, where they made a portable version of the Linzer Torte. 2. If they are Austrian, is there a specific shape that is more traditional? The round shape with a cut-out center, or the round shape with three holes, called eyes, are two examples of shapes.