Vintage photo tinting

I visited the Museo Correr in St Mark's square in Venice yesterday and amongst the wonderful paintings and relics there was a small display of old photographs that had been coloured by hand. 

Also, when I went to the Palazzo Grassi here in Venice, my favourite works on display were hand painted negatives by Ukrainian artist Boris Mikhailov.

a view of the exhibition. image found here

Here's a few close ups of Mikhailov's images: 

I'd like to make this a project of my own when I get home; tinting the photographs that I have found and inserting them into frames that I'll make.

Here's a website giving a bit of a tutorial on ways to do it : Vintage Image Craft