John,
I believe that what you are after is a color scale. It used to be
packaged with a gray scale and some registration marks in two sizes--7
and 14 inch if I remember correctly. Color control strips used to be
exposed and unprocessed color film that you ran through your processor to
check for improper chemistry or temperature. I have no idea if either
product is still available. On the other hand you can get what you want
in a book titled Kodak Color Darkroom Guide, assuming, of course, that
they haven't changed it since the last time I bought one (the Nixon
administration). Large used book stores often have it for a dollar or
two. Good luck.

Michaele and David Haynes       [log in to unmask]