[Tig] Color Grade specifics for 40s, 50s, 60s, 70s

[Victor T]

Hello everybody,
we are a posthouse based in Bulgaria. In a few days we are about to 
begin a commercial project for big client and we will be doing the 
grade, the post and all the finishing involved for the commercial. The 
commercial takes place in 4 different time frames - first part in 1938 , 
second part in Switzerland, second part in 1952 in USA, third part in 
1968 in France and fourth part in 1977 in England. The director wants 
each part of the commercial to match the visual style of the particular 
time frame. So we have to match the colors, the film stocks, the 
imperfections on the stock (dust scratches) etc. Do you guys have any 
general suggestions about each of these decades of time. All suggestions 
are welcome. Thanks

Kind Regards
Victor