Photo-Color Palette
A historian I know through work recently discovered this curious little treasure, which he has given to me.
It's a 190 x 75mm palette of ten colourants, used for hand-colouring black and white photos.
I've been trying to find out more about it online, there's a lot of information about the history of hand-colouring photos on Wikipedia, but I can't find any information specific to this particular type of palette.
I think it's English, because 'colour' is always spelled with a 'u' except where it is part of a product name. I also think it was intended for amateur/home use, rather than by professionals. What I really want to know is how old it is, but with so little evidence to hand, I can't work this out. I'm hoping something in the language (there are instructions for its use printed on the reverse) or the style of dress of the woman on the front will give me a clue as to what decade it was manufactured in. I'll continue investigating...