Probably aluminum. 1960's
http://www.mr-razor.com/Rasierer/Tech/Tech.htm
The ones I really like are brass. I really don't use the original handles to be honest. The aluminum is a bit light weight for my preferences and they have a tendency to get pitted or dented. The brass ones usually don't look fantastic themselves but they tend to survive functionally if not so pretty.
http://www.mr-razor.com/Rasierer/Tech/Tech.htm
The ones I really like are brass. I really don't use the original handles to be honest. The aluminum is a bit light weight for my preferences and they have a tendency to get pitted or dented. The brass ones usually don't look fantastic themselves but they tend to survive functionally if not so pretty.
Shave yourself.
-Todd
-Todd