It's not an adjective Carole's regularly tagged with, certainly not regarding her personality. So, just what's "dull" about the above picture?
Well, let's check its backside:
Since I couldn't make hide nor hair of it, I contacted the seller, who put up a new version...which is when I finally released what I first viewed was upside down. Here's the snipe, enlarged:
A new material and color is introduced by blonde actress Carole Lombard, Paramount player. The material is called deep ply velour and the color is a dull shade of tomato red."
Well, that explains everything.
Bidding for this original 8" x 10" begins at $150; the auction is set to close at 2:49 p.m. (Eastern) Saturday. Like to bid on it, or eager to learn more? Visit https://www.ebay.com/itm/192804932188?ul_noapp=true.