Little glass creamer "Indian Sunset"

Found this and bought it because it resembled a number of EAPG patterns of Imperial and McKee that I have. The only thing I find on the Internet (searched a long time) is that Replacements.com says "unknown manufacturer." Edwards and Carwile wrote that the pattern had been around since 1905...? With all the knowledge about glass in the world, it is really possible to not know who made this pattern glass? It resembles many Imperial pieces and the spout and handle resemble either Imperial or McKee. Anyone?