I found this great Kroehler Color Harmony guide on the big auction site the other day, and snatched it up - it is still in it's original cellophane wrapper. It was printed 10-20-39, so it's too old to be mid-century, but I still feel like it is an amazing resource. Nobody else wanted this; I was the only bidder. Fine by me - I got it for $2.
To see it better, click on it and it will enlarge. The white squiggly lines are from the scanner on the cellophane. The first column of colors is for your Living Room Suite Color, the second column is wall color options, the third column is for rug color options, and the last column is recommended drapery options.
Here's the back, which explains how to use the guide:
I wonder if they were still printing these for mid-century homes? I'll have to keep my eye out for one that is more appropriate for the time period of my home. Still, I think it's an amazing resource!
Have a great Wednesday - Friday will soon be here!