Weight of 1969 Dodge Dog Dish Stainless Hub Caps

Hi guys,
It looks to me like a lot of aluminum caps are advertised as stainless steel. While the difference might be obvious to some it would be helpful if someone could post the weight of a 1969 Stainless Steel Dog Dish Cap. I'm thinking the 1970-1974 aluminum ones must be 5 oz or less, but maybe someone could confirm that too.
Thanks!
John