In Instagram and several other social medias, there is a vintage effect you can apply to the photo you want to share. With the right photo, vintage effect can result a beautiful art. GIMP itself is not designed to be a photo retouching tool like Lightroom. In Lightroom, there might be some presets you can use to instantly apply a vintage effect to a photo.
In this Gimp tutorial we will see how to Age a photo. The result will be a realistic antique photograph, with an effect that is really easy to achieve. I choosed this pic, that has been taken during an italian parade of historic vehicles of firefighters, i think is perfect for this tutorial.