6 Volt or 12 Volt System?

[studda]

I was looking at the 1953 4400 with a 216 in it that I bought a couple weeks ago and the guy who I got it from said it was a 6 volt system still. He had it given to him and it hasn't been touched since 1980. The alternator is a 12 volt alternator. It has a 6 volt coil on it and what appears to be the original starter, which I assume is 6 volt. I hooked up a 12 volt battery and checked voltage going into the coil, which is 12 volts. There is a piece of angle iron bolted to the firewall with what looks like three rheostats and also one on the hot wire going to the heater and defroster. I'm guessing those three are going to the gauges. I'll get a pic tomorrow to see if anybody knows what they are for sure. What are some definitive indicators that it has been fully converted to a 12 volt system? I'm guessing I need to change the coil and possibly the points (which probably wouldn't be a bad idea anyway) and the bulbs, if they aren't already.