https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/2742200Edit ImageSaveSaveEditCropCustom Text"Keep it under your hat!" (1940s) poster in high resolution by St. Michael's Press Ltd. Original from The Museum of New Zealand Te Papa Tongarewa. Digitally enhanced by rawpixel.MorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGTIFFSmall JPEG 795 x 1200 px | 300 dpiLarge JPEG 1988 x 3000 px | 300 dpiTIFF 1988 x 3000 px | 300 dpi | 45.54 MBFree Download"Keep it under your hat!" (1940s) poster in high resolution by St. Michael's Press Ltd. Original from The Museum of New Zealand Te Papa Tongarewa. Digitally enhanced by rawpixel.More