[Douger333]

 

[nick n]

vintage 70's nothing new that's for sure. Think they are called Sonic. If I manage top find that exact link will post it up.  Don't expect much from those if you are wanting them.

 

[jackwess]

They remind me in some way of a vintage Koss headphone, but the shape of the cups is different. I would also like to know 

 
Edit: thanks for the heads up nick.  

 

[nick n]

These are SIC Sonic 101 headphones.  Got a picture for you lifted from ebay, but the pictured ones are missing their adjustment slider tips like older stereos have, and like you see in the picture you posted.  I honestly don't know what to expect for sound i should not judge them since I have not heard them.
If you get them check back in!
 

 
actually you know what they may not be these.  I see two sliders on one side in your picture.  Will keep looking.

 

[Douger333]

Thanks!

 

[nick n]

here is a picture of the SIC Sonic model # 303 with dual sliders. One tone one volume I assume.
 The picture has to be a SIC Sonic model just not sure which ( 202 ?

)
It might be these actually i detect a slight hue of BLUE colour in your first post. 
 
Off a current auction

 

[Douger333]

Thank you very much  again! My decrepit computer and skills could never keep up with yours!