Confederate painted ground cloth

[Taji04]

Ooops, I had posted this under the wrong heading, so let me try again. Maybe some one out there can lend me a hand.

I am on the hunt for an authentic Confederate painted ground blanket/ground cloth. Knowing very little about sizes, manufacturers, paint formulas, and etc, I need a bit of help as to where one can find out such information and where to buy one if someone makes them.

Thanks in advance