Years ago I mentioned that the W-Unc card of Ruth really belonged to the 1926 W511, but Im not sure If I was the one who started the correction on the info in the catalogs or not, but it was about the same time.
The cards are found in 5 colors, blue, purple, B&W, red, and orange.... but I havent seen the Ruth in orange yet.
Ruth is found with #1, #52, #71 and no number
more info on the W511 set...
http://www.moviecard.com/zamerican/stripcards/w511.html