A data carrier with an optically variable structure is described having an
embossed screen which is combined with a coating contrasting with the
surface of the data carrier in such a way that different optically
variable effects occur at different angles. Embossed screen and/or coating
are executed in such a way that especially striking or additional effects
occur which are suitable for determining the authenticity of the data
carrier but cannot be reproduced, or reproduced true to the original, with
the help of copying machines.