I’m not sure what I have here exactly….Rocket? Parat?

Please chime in.





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late 1940's aristocrat jr/canadian market rocket on the left,1950's rocket HD 500 on the right.excellent shavers.cool score.

http://shaveopedia.com/shaveopedia/Gillette/Gillette modelos ENG Rocket.htm

You may need to weigh the one on the right.

No need - nickel is very distinguished from aluminum

That may be the case for you but I was trying to help the OP with something that he obviously is not be familiar with. Did you mean "easily distinguished"?
Char