Below you will find early lightbulb advertisements that appeared on magazines long ago. Many people sell these genuine vintage ads on eBay.com, but their asking prices are often high (for example, $10 for just one ad). Fortunately, I found a whole bunch for about the same price. I believe these need to be shared with the world, so I've put them here for anyone that may be interested. These would look great framed, placed close to a lightbulb collection display. They came from National Geographic magazine issues from 1918. Before printing them, please remember to check "fit to page" on your printer software settings, or they might get printed onto multiple pages.
Mazda Lightbulb Ads From Magazines - National Geographic, 1918