Items of collectible memorabilia, typically written or printed ones, that were originally expected to have only short-term usefulness or popularity.
EphemeraNow.com is no longer online. That cool site warehoused an eclectic collection of historically interesting automotive photos, ads, and advertising renderings. This small sample is mostly comprised of interesting advertising shots, and shows how much retouching and editing was necessary to prepare for print. When these were taken, Photoshop was a place where you bought film. Careers were made by artists who could retouch photos by hand.