[dr_lew]

first class letters IIRC three cents;

Ooh, that dates you. I do recall when it went to 4 cents, though - the purple Lincoln stamp IIRC, so I guess that dates me too.

[WilliamofCarmichael]

I had to check my memory. :)

First class letters and postcards

July 6, 1932
$0.03
$0.01

January 1, 1952
$0.03
$0.02

August 1, 1958
$0.04
$0.03

Notice it was 26 years between rate increases, then six years -- now what? 26 weeks? Source wiki graffiti.

I got ice-cold Coke in the classic glass bottles from a machine for a nickle in the early 50's.

.. soon the dime will be the penny and the dollar the dime. No one will think anything wrong with paying $25 for a loaf of bread -- unless it happens overnight.