JBL sovereign II ?

[Insoc]

I recently fell into possession of a pair of JBL C61 Sovereign II's. While researching I have found a great wealth of information on the c60 Sovereign, but nothing on the c61's. Can anyone point me in the direction where I could find a little info...I.E. value, specs, production dates , etc...Thanks

[grumpy]

http://www.lansingheritage.org/images/jbl/catalogs/1969-home/page07.jpg

prices (original and current) could vary widely, depending on the speaker load:

http://www.lansingheritage.org/images/jbl/catalogs/1969-home/page30.jpg
http://www.lansingheritage.org/images/jbl/catalogs/1969-home/page31.jpg