[Johnson] Signal Sentry

[Chris]

Hello to the Group

 I was wondering if anyone might have a ball park figure as to what the 
Johnson Viking Signal Sentry might be worth these days? I have not been able 
to locate any info as to what they might be worth or even have I been able 
to find any one EBay to get an Ideal as to what they are selling for. If any 
one might know this info please let me know thanks....Chris