Keywords: Zeiss-1.jpg en Averse of the commemorative 20-mark-coin of East Germany on the occasion of the 100th anniversary of the death of Carl Zeiss de Avers der 20-Mark-Gedenkmünze der DDR anlässlich des 100 Todestags von Carl Zeiss own Jobel 2015-11-21 Commemorative Mark coins of East Germany Cc-zero |