[mickem2k12]

Hello fellow audiophiles!
 
This is my first post here, didnt know where else to ask regarding these headphones. 
While cleaning out my girlfriends attic i came over these headphones. They are massive, heavy and the audio is superb. Much of the finish is in steel/aluminium. They also came in the original box, marked "Dynamic Stereo Headphones". Does anyone have any idea of their age? Or producer? They lack branding and googling the model number gives nothing.
 
Any experts out there who can shed some light on this set?
 
Unfortunately i dont have the permission to upload pictures, so i have created an album on imgur.com. Please take a look at them and give me some feedback! 
 
 
http://imgur.com/a/viVHj
 
 
Thanks in advance guys!

 

[Shockah]

I have no idea... Since you use imgur perhaps you should try posting it to reddit.com/r/headphones you can view images from there at imgur.com/r/headphones 
 
Or you could ask your girlfriend, or her parents, or her grandparents

 

[KG Jag]

Don't know anything specific about them.  They look like they came out in the 70's.

 

[oulton]

Hi,
 
You could try google reverse image search - it might shed some light!
 
Best,
 
oulton