All of the old will be removed on this one, Mike. The original fusebox is one of the best I've ever seen, except that the snap-in of the 240 volt fuseholders are weak. The small sub-panel is wired in from lugs on the main at 100 amps, another very nice feature.
Re: Another Day at the Office#118462 09/18/0412:59 PM09/18/0412:59 PM
This did pass inspection, but it looked better than the first three pictures when I finished.
It was a timely upgrade. The lower main lug on the fusebox spun rather than unscrewing (fourth picture).
The fifth picture shows a little creativity in metal-work by a previous electrician, and the sixth picture was my lesson that you can't bash a plastic part in the middle with lineman pliers to remove the knock-outs.