Tlustý kruhový peníz se lvem.

The author presents an unknown double-sided thick round coin with lion and crown images preserved in a private collection. Based on detailed iconographic and material analyses, and on comparison with the contemporary lion / crown types, the author offers the very likely dating of the coin. It was produced before the reform of George of Poděbrady, i.e. between 1460 and 1469. The coin also documents the fact that the hellers of George with crown in pearled circle could not have been struck after the reform in 1469, but -- very likely -- they had been also produced before the reform. [ABSTRACT FROM AUTHOR]