30 mm Spare bullet with tracer for PLdvK vz.53 (30-NhSv-PLdvK 53)
Source : Del-51-67 Overview of artillery, mortar and special ammunition, Volume II ( artillery ammunition for antiaircraft guns ) - ČSĽA regulation, Prague 1963
Source : Del-51-67 Overview of artillery, mortar and special ammunition, Volume II ( artillery ammunition for antiaircraft guns ) - ČSĽA regulation, Prague 1963