1970s Airline Postcards - Where to Find More?

So, I recently came across a couple of airline postcards from the 1970s. They're from TWA and Pan Am, and honestly, they're pretty sweet. The artwork and the whole vintage vibe got me hooked. Now, I'm on the hunt for more!

Does anyone know where I can find a good stash of these vintage airline postcards? I've checked eBay, but most of the listings are kind of pricey. Maybe there are some hidden gems at flea markets or antique shops? Or maybe someone here has a few they're willing to trade or sell?

Also, any tips on how to display them? Right now, they're just sitting in a box, and I'd love to show them off. Anything creative for small spaces would be awesome. Thanks in advance for any advice or leads!

Check out local flea markets and estate sales. You can sometimes find a box of old postcards where people don't really know what they have. Also, antique shops sometimes have them tucked away. For displaying, you could use a multi-photo frame. They fit nicely and you can hang it on the wall to save space. Keeps them clean and visible too! Or try a postcard album if you want to flip through them like a photo book.