Similar designs have been attributed to Mt. Washington/Smith Bros. on page 145 of The Collector'a Encyclopedia of American Art Glass by John A. Schuman III and pages 132 and 137 of The World of Salt Shakers, 2nd Edition by Mildred and Ralph Lechner. I currently have an unmarked pink vase with two birds and two circles listed on the main eBay site using these attributions. Now I have to wonder if, in fact, they are Baccarat?