While awaiting execution Van Teeseling was first placed in solitary confinement in cell B-1-1 of Amsterdam’s Weteringschans Prison: the death cell. But he received permission to draw. Until being moved to the Wehrmacht Military Prison in Utrecht in 1942, he made more than 150 self-portraits that he signed and dated. He also included his cell number. While imprisoned in Utrecht, he only drew now and again: primarily portraits of the prison guards. On 24 November 1942 his wife received a message that Cor van Teeseling had been executed five days earlier near the Dutch town of Soesterberg, a few days after his twenty-seventh birthday.