Few of them are really old. Probably none is really deteriorated. Few might have been post-processed in the good old way. In almost all the cases, Photoshop was the darkroom. New method, old style. But the result is the one desired. That retro, warm, colorful, sometimes deteriorated, candy tasting, memories fragranced, unusual nowdays look.

Prepare your old fashioned camera or your Photoshop skills. Dust off those retro clothes. Put that Beatles vinyl on. Go watch some classic movies. Have a bit of emotion. Jump, dance, stand up straight, smile, run, lay down, look on the window, do whatever you like (because decades ago people were doing just about the same everyday things as they do today - of course, except listening music on an iPod and so ). Find that perfect light. Warm up those tones. Think vintage.