The label says, "The Giftware Line". This set is listed in Whitmeyer's "Bed and Bath" book as a U. S. Glass product but since the book's publication Margaret Whitmeyer has said that if she does a new edition of the book, she will list it as an Indiana product. Gene Florence has also said he thinks it is Indiana. Documentation for either attribution has not been found, so this entry has been designated as Unknown.
Update: Researcher Ed Gosh has stated that it is not U.S. Glass. Researcher Craig Schenning has stated that no Indiana documentation exists for this set.