Czechoslovakia's interwar monetary administration conducted periodic trial strikes to evaluate new compositions and planchet specifications before committing to full production runs — this 1931 brass piece appears to be one such exercise. Whether it preceded a formal proposal to replace the existing zinc-aluminium coinage or simply tested a supplier's planchet blanks is not documented in surviving mint records with any precision.
Czechoslovakia's interwar monetary administration conducted periodic trial strikes to evaluate new compositions and planchet specifications before committing to full production runs — this 1931 brass piece appears to be one such exercise. Whether it preceded a formal proposal to replace the existing zinc-aluminium coinage or simply tested a supplier's planchet blanks is not documented in surviving mint records with any precision.
No brass 20 haléřů ever entered circulation.