KL Sachsenhausen German Prisoner's Set of Letters, Money Orders and Certicate. Prisoner Edmund Yonder and was given number 28454 into the camp. Set comprises 2 letters from KL Sachsenhausen dated in 1941. Both come with envelopes and have ink stamp of censorhip office of the camp. Also comprises 2 money order receipt cards sent to him by a relative, one of 20 and the other of 10 RM. Finally a certificate written in Polish explaining all his experience and time in concentration camps.