Would I be correct in assuming that this is the DECCA Doppler 62 Controller ?
PS. If it is ... It's not me holding it ... right
... But a guy on YouTube who has an interest in doing video "Tear Downs" on antique Nav kit to see how it works
And if you have the constitution ... here is the link to the video
https://youtube.com/watch?v=fcoR8plMMK8