Here are the six Bass/Kallis illustrations done for Stanley Kramer’s “Not as a Stranger.” Though Bass had a long and fruitful relationship with Kramer, I could only find evidence that two of these drawings were actually used to advertise the film in any way. However, the primary figure in all of these drawings — that of the doctor in full operating regalia, including his mask — was the primary notion in all of the posters for the movie, and in the two consumer advertisements used most.
The two Bass/Kallis illustrations that were used virtually verbatim as ads for the movie are drawings No. 1 and No. 6. Here are the ads:
Here’s the “Not as a Stranger” pressbook page that talks about these two ads specifically, and how widely they were being distributed:
The links below take you to the other Bass/Kallis work in this story: