69 valiant charging problem

Also, is there a change to determen what type of an alternator I have, pre or post 70?

Here are the pictures:

https://www.dropbox.com/s/yfy7zmodc1rqvai/20150806_130844.jpg
https://www.dropbox.com/s/kp20tso9izyx9go/20150806_130837.jpg
https://www.dropbox.com/s/kp20tso9izyx9go/20150806_130837.jpg

Kristjan.