The Mignon iHORN is made from an extremely rare Stern & Stern Stentor Mignon radio horn manufactured in Stockholm, Sweden. It is only one of a few I have seen in over a decade of searching. In fact, is so rare that there is no information recorded about it which I could find.
Stentor was the brand name for Stern & Stern radios and speakers. The company was founded in 1922 and by 1940 was bought out by Phillips ceasing to manufacture any products under the Stentor name. Therefore, this radio horn was made between those dates, although most likely in the early years of the companies viability.
The Mignon meets its definition-it is small and delicately pretty. Savior those artifacts which express their uniqueness.