A side by side before and after version can be seen Here.

The photo turned out to be of the posters grandfather (a WWII Veteran) with his brother and sister shortly before he received the Distinguished Flying Cross

After spending some time in Photoshop doing some general cleaning to get rid of the dust and scratches, I started looking into the winged emblem on the older gentlemen’s coat. It took a while, but I eventually found descriptions of the uniforms, which allowed me to colour them appropriately.

The client said that when he sent it to his mother, she told him that she sat silent for a couple of minutes, overjoyed at seeing the picture brought to life with colour.