In the Wishbone episode about "A Tale of Two Cities" towards the end Charles (wishbone) and his wife are looking on their mantel piece a picture of Sydney, who saved Charles' life. When they show the picture, it is a perfect in color photograph, which I don't think you would see in the 17 and 1800s! Whoops!
Don't you think that maybe because just about no one had camera's in the 17 and 1800's, that maybe the picture was drawn? maybe? Also remember that this is a kids show...
they didnt have cameras in the 1700's and for most of the 1800's. i have a charcoal drawing of a relative from the late 1800's and it has color in it. plus, some photos from the 1800's, after being developed, have color added to them with regular paint. my aunt has a photo of a bride and groom ( i think my uncles grandparents) and the roses in her bouquet are painted pinkish and the leaves are green. im not sure what the picture looks like that you are refering to but it is possible that the color came from paint.