[1] Szlama Ber Winer managed to make his way from Chelmno to the Warsaw Ghetto and gave detailed information about his week-long experience with the Sonderkommando at that death camp to the Ghetto's Oneg Shabbat group, headed by historian Emanuel Ringelblum.
It looked like a normal large lorry, in grey paint, with two hermetically closed rear doors.
The smell of gas that met us was overpowering.Winer also described the brutal treatment of Sonderkommando prisoners, left alive to dispose of the corpses, and his escape from the camp.
Winer subsequently escaped to Zamość where he wrote to the Warsaw Ghetto of the existence of a death camp in Bełżec.
[10] Another escaped inmate from Chelmno, Mordechaï Podchlebnik, managed to survive the war, and in 1961 gave testimony at the Eichmann trial in Jerusalem.