https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13997663
A dentist asking a nervous patient would she like gas, she retorts no she doesn't want him poking around in the dark. Process print after T. Sarg.
Original public domain image from Wellcome Collection
Public DomainFree CC0 image for Personal and Business use