Cary sweet 807????

I have just aqquired this Cary sweet 807 and there is absoloutely nothing on the internet about this amp. Kinda like my Luxman M-111. But I could really use some help if you guys know anything! heres what I know so far...this is one of the first or is the first amp made by Cary, it is 35 watts per channel, It is push pull, and thats about it. I want to know if its a very rare amp what would it be worth and what did it sell for originally. Please guys a little help here. Thanks in advance!