Mark - Wire recorders are listed for sale fairly often on Ebay. I have seen a few console models similar to what you have. They don't seem to attract many bidders. Perhaps you can monitor Ebay for a while to get a general idea of the value.
Robert H.
:I have a silvertone floor model console, am-fm radio, phono, and wire recorder. Does anyone have an interest in such an item or have a resource to figure its value?