Walz Coronet B manual

[iKokomo]

I found an old Walz Coronet B which seems to work well (responds to light and dark) and I was wondering of I could find a manual for this? I know, I have seen the Walz Coronet B II manual online (a guy name Butkus) but I am new to this and I did not quite understand how to use it by reading the manual for a different one!
Thanks a lot!!