Two-part enamel badge in the form of a laurel wreath ending with an image of the coat of arms of the city of Kalisz, at the bottom there is a visible sash with the inscription Kalisz and the date 1918. In the inner part of the badge one can see initials ( ZZK - Railway Workers' Union ?? ) below visible deer's head. The reverse is smooth gilded, with a mounting post in the center. The post is threaded.
General condition shown in photos,
Dimensions: 27mm 20mm.