Help recognize vintage isophon speakers and opinions

[King_Julian_S]

Hi all.

Anyone know these and maybe detail or opinions on them ?

http://instagram.com/p/eqGQjvTbUX/

Sorry cannot download pics so link is best option for me.

 

[King_Julian_S]

 

[ghostinthemachine]

 

[Steerpike]

 

[King_Julian_S]