Finally a subject that I can help someone out with. No your paint cannot be matched identical to paint of 60 years ago. The problem lies in the base colors that make up your particular color. The bases today are formulated to pass epa regulations. No I'm not a fan of it, but it is what it is! Thats a whole nother subject.
Anyway, the absolute best way to get a color to be sprayed to match a color of 60 or 70 years ago, is to find a spot that you want it to match. If your going for an original color... you must find an area where the sun doesn't shine. Places such as in the trunk, inside doors, under hoods, inside glove boxes, or under a dash are good starts. If you can take a part off of a car such as a gas door to your local paint store, or call your local professional paint store to make a visit to your house with their color matching camera.
This camera is designed to get a close proximity of the color needed into todays base formulation. It literally takes a picture or several pictures to get results that the camera requires. Sometimes it is a dead on match, other times your not so lucky and it requires tinting by hand.
There will probably never be a time when you can just walk into a paint store, give them a paint code, and be able to spray a perfectly matching color!!!! There are way to many varibles that add to the mix of a color.
Just one exampl; Today parts are painted all over the world to assemble one car. The car is sprayed in Detroit, the bumpers are sprayed in Arizona, the handles are sprayed in Canada, Mouldings from Mexico. You get the idea! All these factories use different paint brands, mix the paint in different quantities, and some have different regulations and acceptable standards of how paint is mixed and applied.
I could go on and on, but I think you can get an idea of why paint doesn't match and will never match.