Would need to know for sure if it is a copper or silver piece, and how big it is, but probably, if you can see the ZE on the reverse side, then it is a pretty worn out 1 KREUZER. Up until 1850, most of the coins carried the Hapsburg (2-headed eagle) crest in a shield with crown on top.  After 1851, the shield was removed, and the 2-headed eagle crest was enlarged, with the crown above it.   It is made of copper and the same size as an old british penny but twice as thick.  The 2-headed eagle seems to be in a rectangular shield with a small point at the bottom with the crown above the shield?