One can say the use of stamps is old school but you can't beat the special feeling of using a custom stamp to reinforce your brand. I'm a big fan of the use of stamps, it gives and extra layer of awesomeness to anything. Enjoy!
Even though some of these stamps are not so vintage, most of them are from the 70's with strong designs from all over the world including some amazing pieces from switzerland. It's really nice to see and compare what they were doing back them without half of the technology that we have now days. Enjoy! These stamps were found at Adapt or Die Flickr gallery, visit them for more.