What about 1939?

Uh, a dime. If you're referring to purchasing power, it's a bit hard to say because so many things are so different today. A stamp cost 3¢, a newspaper was 2 or 3¢, a bus ride or a bottle of Coke...

S is a southbay ny mark. D is a denver mint.

Neville Chamberlain was Prime minister until may 1940 when Churchill took over.

batman was created, the wizard of of came out, the studebaker champion was created,

The girls wre a LOT of high heels! And the dress style/paddern shown above.