457x

: This specific model was produced by the Sparks-Worthington Company of Jackson, Michigan, primarily for the European market, making it significantly rarer than domestic Sparton models. 🔭 Secondary Technical Meanings

: It is characterized by high-quality grey mirrors set against a contrasting ebony (black) lacquer finish. : This specific model was produced by the

: Specific researchers may have IDs containing these digits (e.g., Laura R. Shapiro ). primarily for the European market

I can provide more detail if you are: Restoring a Sparton radio and need technical specs. : This specific model was produced by the