Old electrical panels?

I have run into some very old electrical panels, though I have lots of reference material regarding new panels and wiring, I am having a hard time finding anything to tell me more about panels that are up to and older than 40 years. Anyone know of a reference book or website that can help?

Hi Yaro,

One of the best respected books on the subject is by Douglas Hansen, here is a link to it:

http://www.constructionbook.com/xq/ASP/ProductID.3716/id.444/subID.761/qx/default2.htm

Regards

Gerry

Thanks