Vintage Daiwa Coaxial Switch Model CS-201.
This looks to be in good cosmetic condition.
I am not an expert on all things I sell. I am a reseller and not able to provide some specific information. However, I will provide any additional product specs learned from my research so that you can determine if the item will work for you. If you have any questions, please ask and I will do my best to answer.
This has not been tested.
Measures 3" long and 3.75" wide and 2" deep