[Joe Rossi]

Here's what I've been able to find. I can find no reference to a Halson model 15, or a Halson 4-tube radio with a 6A7 tube in the mix. They did make at least four 4-tube radios with a 6C6, 6D6, 25Z5, 43, and the L49B ballast tube. They would be the models 5LE, 5L-E, T5, and T10, none of which really look like yours. Federal Purchases also sold the Acratone 5E, 5F, and 5G with the same tube mix. Finally, Halson was known to produce radios for private labeling by department stores, etc.

Where does that leave you? It wouldn't be the last time that a radio has been purchased and one or more tubes in it aren't correct. Is there another name anywhere on the chassis or cabinet? If so, that may give an indication who Halson produced this for. Let me know. Joe